z/OS V1R9.0 UNIX System Services Command ... - Christian Grothoff

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make and: %.c : %.y ... rule body ... c When you specify: make file.o make uses the first metarule to look for file.c. If it can’t find an explicit rule to build file.c, it again looks through the metarules and finds the rule that tells it to look for file.y. make allows each metarule to be applied only once when performing transitive closure to avoid a situation where it loops forever. (For example, if you have the rule: % : %.c ... rule body ... the command: make file causes make to look for file.c. If the metarules were not restricted and file.c did not exist, then make would look for file.c.c, and then file.c.c.c, and so on. Because each metarule is applied only once, this can’t happen.) Transitive closure is computed once for each metarule head the first time the pattern matches a target. When transitive closure is computed, all the computed rules are added to the rule set for that metarule head. For example, if you have the rules: % : %.o recipe 1... %.o : %c recipe 2... and you are making file, this target matches successfully against % causing transitive closure to be computed for %. As a result of this computation, a new rule is created: % : %.c recipe 2... recipe from .REMOVE target for %.o, if not .PRECIOUS recipe 1... which is executed if file.o doesn’t exist. When the computation for the rule head has been done, it is marked as transitive closure computed. Since all possible new rules have been added to the rule set the first time the computation is done, it is not necessary to do it again: Nothing new is added. The term transitive closure is adapted from the mathematical set theory. Note: In set theory, if you have a set composed of pairs (a,b) and (b,c), then the set would be transitively closed if (a,c) is also in the set. The best way to understand how this works is to experiment with little make files with the –v flag specified. This shows you in detail what rules are being searched, when transitive closure is calculated, and what rules are added. 400 z/OS V1R9.0 UNIX System Services Command Reference
Order of Rule Generation Since transitive closure allows make to generate new rules, it is important to understand the order in which this is done: Suffix Rules 1. make searches for explicit rules in the order in which they appear, so explicit rules always take precedence. 2. make reads metarules in the order in which they appear in the makefile. The first rule that appears in the makefile is the first one checked. 3. New explicit metarules (as distinct from metarules generated by transitive closure) replace old ones. In other words, if your makefile contains an explicit rule like this one, it replaces the default rule in startup.mk: %$O : %.c rule1 If you use the –v option, make prints a warning when it replaces a metarule. 4. When transitive closure is calculated, the new metarules generated are added to the end of the list of possible metarules. Thus, make always finds the explicit rules first, so they take precedence over generated rules. You can use the –v option to see what rules make generates and the order in which they appear. 5. make performs two passes through the rules. On the first pass it tries to find a match with an explicit rule in the makefile; if this does not succeed, make performs a second pass to find a match with an existing file. make treats targets that begin with a period and contain no slashes or percent signs as suffix rules. If there is only one period in the target, it is a single suffix inference rule. Targets with two periods are double-suffix inference rules. Suffix rules do not have prerequisites but do have commands associated with them. When make finds no explicit rule to update a target, it checks the suffix of the target (.s1) to be built against the suffix rules. make examines a prerequisite based on the basename of the target with the second suffix (.s2) appended, and if the target is out of date with respect to this prerequisite, make runs the recipe for that inference rule. Metarules take precedence over suffix rules. If the target to be built does not contain a suffix and there is no rule for the target, make checks the single suffix inference rules. The single suffix inference rules define how to build a target if make finds a rule with one of the single suffixes appended. A rule with one suffix .s2 defines how to build target from target.s2. make treats the other suffix (.s1) as null. For a suffix rule to work, the component suffixes must appear in the prerequisite list of the .SUFFIXES special target. You can turn off suffix rules by placing the following in your makefile: .SUFFIXES: This clears the prerequisites of the .SUFFIXES target, which prevents suffix rules from being enacted. The order that the suffixes appear in the .SUFFIXES rule determines the order in which make checks the suffix rules. The search algorithm used for suffix rules depends on whether the .POSIX special target is specified. When .POSIX is specified, the following steps describe the search algorithm for suffix rules: make Chapter 2. Shell command descriptions 401
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z/OS UNIX System Services Command R
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Note Before using this information
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| | | | | | | | | clear — Clear t
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| | | paste — Merge corresponding
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| OCOPY — Copy an MVS data set me
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x z/OS V1R9.0 UNIX System Services
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xii z/OS V1R9.0 UNIX System Service
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xiv z/OS V1R9.0 UNIX System Service
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You can browse softcopy z/OS public
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v A CD-ROM in the z/OS Collection (
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uudecode uuencode The following deb
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c++ c89 cc mount pax ps multproc su
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[-k startpos[,endpos]] ... [file ..
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Trying the examples provided Before
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Usage notes Exit values Limits Port
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v Environment variables (DBCS chara
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When in the POSIX locale, DBCS stri
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alias Options To avoid using four b
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| | | alias Portability POSIX.2 Use
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ar Operands Examples archive Specif
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| | | | | | | | | | | | | as as —
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asa Localization Exit values Portab
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at hh:mmam Morning, 12-hour clock h
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| | | autoload See typeset — Assi
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automount name * type HFS filesyste
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automount 30 z/OS V1R9.0 UNIX Syste
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| | | automount v When allocation-s
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awk For a description of fields, se
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| | | | | | | | | | | | awk If two
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awk contains five fields, two of wh
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awk ampersand (&) in repl with the
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| | | | | | | | | | | | awk Actions
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awk {print NR ":" $0} 3. The follow
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| | | awk close(string) return ($2)
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awk Portability The parser stack de
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| | | batch Exit Values Portability
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c v A function is a sequence of ins
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c Arithmetic Operations bc provides
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c A || B Is true if A is true or B
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c if (a
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c Each parameter on the first line
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| | | | bc Examples a full name, an
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| | bc Usage notes Files Localizati
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g bg — Move a job to the backgrou
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| | | | | break Usage Note Exit Val
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c89, cc, and c++ Options utilities.
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c89, cc, and c++ hexadecimal format
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c89, cc, and c++ You can specify an
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c89, cc, and c++ acceptable to have
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c89, cc, and c++ 78 z/OS V1R9.0 UNI
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c89, cc, and c++ passing function c
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c89, cc, and c++ be a C370LIB objec
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c89, cc, and c++ Environment variab
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c89, cc, and c++ c89/cc/c++ environ
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c89, cc, and c++ of record format u
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c89, cc, and c++ the IPA Link step
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c89, cc, and c++ prefix_NEW_DATACLA
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c89, cc, and c++ The following data
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c89, cc, and c++ normally used by c
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c89, cc, and c++ escaped. For examp
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c89, cc, and c++ to specify a libra
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c89, cc, and c++ prefix_ILSYSLIB pr
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| | | | | | | | | c89, cc, and c++
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cal Localization Usage Note Exit Va
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calendar Related Information mailx
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captoinfo Related Information infoc
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cd In the shell, the command cd - i
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chaudit Examples Localization Exit
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chcp Examples Usage notes You get t
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chgrp Description Options Localizat
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chlabel Exit Values Examples 0 Succ
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chmod Examples If the RACF profile
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chmount Options Example Usage Note
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chown Localization Exit Values Mess
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chroot Exit Values Given the standa
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chtag Examples Usage notes Note: Co
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cksum File Tag Specific Options Loc
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cmp File Tag Specific Options Local
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col Usage notes Exit Values Portabi
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comm Portability Related Informatio
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compress Options Localization Exit
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confighfs Examples Usage notes -v n
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configstk Examples number specified
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configstrm Usage notes Example -u l
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| copytree Exit Values Related info
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cp cr carriage return lf line feed
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cp SPACE=(500,(100,500)) units, pri
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cp Table 6. Automatic conversion an
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cp 1. If an UNIX file does not exis
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cp Usage notes Table 10. cp Format:
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| | | | cp Localization Exit Values
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cpio Patterns are the same as those
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cpio Localization Exit Values Porta
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cron daemon Files If these files do
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crontab Options 0 0 * * * -- Midnig
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csplit Options -A Uses uppercase le
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csplit Related Information awk, sed
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cu Description Note: The cu utility
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| | | | | | cxx cxx — Compile, li
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date Example %OW The week number of
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| | | dbx Attach-types Options this
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| | | | | | | | | | | dbx dbx subco
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dbx: alias alias stopf(file, line)
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dbx: clear clear subcommand for dbx
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| | dbx: cont Usage Note The cont s
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| | | dbx: dump Option >file dump o
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dbx: gotoi gotoi subcommand for dbx
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dbx: list All lines from the first
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dbx: listi Examples 1. To list the
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dbx: mutex mutex subcommand for dbx
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| | | dbx: object Usage Note v The
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| dbx: pluginunload See the plugin
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dbx: readwritelock readwritelock ho
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| | | | dbx: return Examples 1. To
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dbx: set $frame Uses the stack fram
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dbx: set $r General register. $repe
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dbx: source Description The source
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| | | | | | dbx: stop Options at [
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dbx: thread 5. To display all threa
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dbx: tracei 3. To trace each time t
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dbx: whatis Usage notes 1. Variable
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dd Options 2. If this input block i
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dd Example ibs=size Sets the input
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df Options Space Free Total amount
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diff Description Options The diff c
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diff Localization results in the fo
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diff Limits Portability Related Inf
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. (dot) . (dot) — Run a shell fil
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dspmsg Options Examples default mes
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echo Description Examples Usage Not
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| ed need to specify addresses for
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| | | | | | | | ed the current line
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ed Exit Values Messages v LC_SYNTAX
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env Exit Values Portability v NLSPA
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ex Localization Portability Related
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exit exit — Return to the shell
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expand Related Information pr, unex
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expr Option Usage Note Examples Loc
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exrecover daemon Localization Files
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exrecover daemon Exit Values Relate
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exrecover daemon Related Informatio
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fc the one indicated by first throu
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| | | | | | | | | | | | | fg Exit V
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find Options number noted in the pr
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| | | | | | | | | | | | | | find nu
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find -newer file Compares the modif
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find Localization Exit Values 8. To
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fold Localization Exit Values Porta
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fuser Exit Values or Related Inform
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gencat Description Sequence Vertica
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getconf _POSIX_VDISABLE Specifies t
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getconf POSIX2_LOCALEDEF Indicates
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getfacl Options Examples -a Display
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getopts Example script recognizes -
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grep Options egrep works in a simil
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grep Portability Related Informatio
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head Messages Portability Related I
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iconv Options Localization Examples
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id Options Localization Example Usa
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inetd daemon Usage notes 1. Buffer
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infocmp Options Usage notes Example
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infocmp :co#80:\ :li#24:\ :kn#2:\ :
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ipcrm Options Examples Exit Values
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ipcs Table 14. Explanation of the i
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ipcs Table 14. Explanation of the i
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ipcs Examples -t v Time of the last
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jobs Options Localization Usage Not
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join Localization Exit Values Messa
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kill Options 7 SIGSTOP 8 SIGFPE 9 S
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kill Related Information jobs, ps,
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ld be a C370LIB object library or a
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ld _LD_LIBDIRS_ The directories use
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ld -u _LD_EXTRA_SYMBOL CEEMAIN or,
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ld Localization Exit values Related
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lex Options For a description of th
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lex Limits Portability Related Info
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link Related Information link, ln,
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Page 384 and 385: logger Portability POSIX.2, X/Open
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Page 394 and 395: mail Sending Mail Example Usage not
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Page 454 and 455: more Options more allows paging for
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Page 458 and 459: mount Options -a yes|include,sysnam
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mv Portability Related Information
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newgrp Portability Related Informat
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nl Example Localization Messages Po
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nm -M Inserts three columns in the
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nohup Localization Exit Values Port
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| | | | | | | | | | | | | | od Opti
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| | | od LL Corresponds to the numb
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oedit Option Usage notes Environmen
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pack Localization Exit Values Porta
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paste Options Examples Localization
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patch same file, patch only creates
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patch Localization Exit Values Port
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pax Description Note APAR OW52499 (
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pax Patterns Options Command-line p
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pax Rule: Specifying more than one
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pax If you do not specify -o, no co
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pax 482 z/OS V1R9.0 UNIX System Ser
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pax and have specified the correspo
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pax On UNIX and POSIX-compliant sys
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| pax handled by any other format s
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pax Output Usage notes the source f
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pax Table 26. Charset standards (co
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pax d[efault] If specified, extende
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pax not Not specified bin Binary da
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| | | pax The values for all the ke
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pax The -o noext option is the defa
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pax pax -ofrom=ISO8859-1,to=IBM-104
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pax Portability POSIX.2, X/Open Por
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pg Commands This is described in Ap
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pg $TMPDIR/pg* Temporary files to a
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pr Files default for n is 5. The ch
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print Usage Note Localization Exit
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printf printf — Write formatted o
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printf Related Information echo, pr
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ps Format Specifications Using the
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ps ruser Displays the real user ID
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ps the four byte value determined w
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pwd Localization Exit Values Portab
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ead Localization Usage Note Exit Va
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enice Options Localization Exit Val
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logind Options Note rlogind should
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m Options Localization Exit Values
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| | runcat runcat — Pipe output f
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| | | | sed _UNIX03=YES is set, one
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| | | | | | | sed Example If the va
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sed Related Information awk, diff,
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set ignoreeof Tells the shell not t
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set Portability POSIX.2, X/Open Por
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setfacl 2. The user tried to change
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setfacl Localization Exit Values Po
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sh Options and runs this file with
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sh and this second shell actually r
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sh -o option True if shell option i
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sh current ERR and EXIT traps, as w
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sh Quoting found only in FPATH, thi
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sh Variables are named parameters.F
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sh ${parameter:+word} Expands to wo
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sh $(command) as in: ed $(grep -f -
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sh number&− Closes output descrip
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| | | | sh shell environment starts
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sh Note: Shell variables that are e
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sh Table 28. Built-in Shell Variabl
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sh Files Table 29. Shell Variables
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sh Hangup The shell received a hang
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shedit A command line that extends
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shedit Meta-* Replaces the current
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shedit ?stringEnter Selects the fir
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shift Description Examples Usage No
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skulker Description Options skulker
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skulker Exit Values Messages 0 Succ
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sort Sorting Keys By default, sort
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sort Localization Exit Values Messa
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spell spell — Detect spelling err
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spell Limits Portability Related In
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stop that may be specified as octal
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strip Localization Exit Values Mess
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stty hup Hang up the modem line on
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stty ofill Use fill characters for
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stty Usage notes Localization evenp
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su v Changes the group ID. If a use
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su Exit Values Messages Limits Port
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sum Exit Values Portability See App
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tabs which case the number is consi
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tail Localization Exit Values Messa
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talk Exit Values Portability 3. The
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tar Rules : You cannot specify both
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tar Output Tip : If -O is specified
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tar Usage notes Archive Listing (Ta
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tar Portability 4.2BSD Related info
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tcsh -n Parses commands but does no
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tcsh A filename to be completed can
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tcsh entire input buffer with spell
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tcsh i-search-back (not bound) Sear
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tcsh up-history (up-arrow, ^P) Copi
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tcsh # The current event. This shou
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tcsh password″ rot with !:s/rot/r
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tcsh modifier is applied to a subst
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tcsh /usr/source/s1/ls.c. The resul
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tcsh Input or output The standard i
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tcsh fail, returning false (0). If
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tcsh Jobs Only one of these operato
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tcsh v The autologout shell variabl
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tcsh This will put the hostname and
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tcsh The shell synchronizes group,
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tcsh Table 32. tcsh Built-in Shell
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tcsh represented by ~ and other use
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tcsh here’s the behavior with sym
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| tcsh Table 33. tcsh Environment V
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tcsh Commands within loops are not
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tcsh: % (percent) v % job & will mo
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tcsh: bye bye built-in command for
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tcsh: complete This completion comp
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tcsh: dirs Description dirs used al
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tcsh: glob Description glob is like
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tcsh: limit hours, or a time of the
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tcsh: lsF See “tcsh — Invoke a
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tcsh: pushd -v Entries are printed
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tcsh: setty setty built-in command
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tcsh: unsetenv Description unsetenv
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test Description test checks for va
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test Usage notes Examples expr1 -o
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tic Example -c Specifies that the i
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times Option Usage Note Localizatio
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touch Localization Exit Values Mess
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| | | | | | | | | | | | tput Exit V
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trap Usage Note Examples Localizati
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tso Examples a mini-TSO/E environme
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tso export TSOPROFILE="prefix(wjs)
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tsort tsort — Sort files topologi
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type Exit Values Messages Portabili
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typeset Localization Exit Values Me
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| ulimit Usage notes Localization d
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umask Exit Values Portability v LC_
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uname Localization Usage Note Exit
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unexpand Options Localization Exit
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uniq Messages Portability Related I
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unmount Examples Usage notes codes.
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unpack File Exit Values Messages Po
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uptime uptime — Report how long t
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uucico daemon Options Examples File
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uucp Options v A pathname preceded
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uucp uucp remote!/tmp/file?.[!b]* /
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| | | | | | | | | | | | | | | | | |
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uuencode Localization Exit Values P
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uuname uuname — Display list of r
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uupick Localization Files Usage not
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uustat Examples rtype The request t
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uuto Description Options Localizati
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uux Options Unlike arguments to uuc
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uux Exit Values Portability Related
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uuxqt daemon Related Information uu
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vi These lines are not part of the
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vi m Records the current position p
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vi with a form feed (Ctrl-L), start
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vi same manner as the ex system com
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vi Ctrl-G Displays the current path
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vi command The command is a word, w
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vi arguments for the ab command, it
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vi [.,.] l[ist] [count] [flags] Dis
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vi so[urce] file Runs editor comman
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vi (^), the editor displays the scr
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vi autoindent, ai When autoindent i
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vi in the list are paragraph bounda
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vi wrapscan, ws If this option is o
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vi Localization Exit Values vi uses
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vi Related Information ed, ex, fg,
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wc Localization Exit Values Portabi
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who Files Localization Exit Values
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write Usage notes Localization Exit
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| writedown Examples 1 Failure due
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xlc and xlC The various compiler in
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xlc and xlC Setting up a configurat
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| | | | | | | | xlc and xlC CEE.SCE
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| | | | xlc and xlC 1. search place
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xlc and xlC * 64 bit ANSI C++ compi
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xlc and xlC principle, as both can
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xlc and xlC 5. -Bprefix and -tprogr
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xlc and xlC Note: When used in the
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xlc and xlC xlc -qipa=level=2:map:n
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| xargs xargs — Construct an argu
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xargs Example If no command templat
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yacc Options -b file_prefix Uses fi
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yacc Messages v Bad %start construc
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zcat Localization Exit Values Porta
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BPXBATCH BPXBATCH — Run shell com
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BPXBATCH Examples When PGM and prog
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MKDIR Return Codes Examples The def
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| | | | MOUNT MOUNT — Logically m
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| | | | | | | MOUNT file is sparse
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MOUNT Usage notes AUTOMOVE(EXCLUDE,
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MOUNT Return codes Examples As stat
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OCOPY Parameters v A file to an MVS
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OCOPY Usage notes TO1047 | FROM1047
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OCOPY PATHMODE (sirwxu) PATHOPTS (o
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OGET v A fully qualified name that
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OGET Return codes Examples 4. An ex
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OGETX example, doublebyte character
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OGETX Examples For OGETX to treat t
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OMVS Description Parameters RUNOPTS
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OMVS Table 37. Locales, Their Conve
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OMVS In general, the provider of th
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OMVS scrolled off the screen. If yo
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OMVS PF16(TOP) PF17(BOTTOM) PF18(TS
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OMVS HALFSCR Scrolls half the displ
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OPUT OPUT — Copy an MVS data set
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OPUT Return codes Examples the modu
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OPUTX v data_set_name(member_name).
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OSHELL Description OSHELL uses BPXB
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UNMOUNT Parameters FILESYSTEM(file_
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UNMOUNT Examples 1. The following c
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history — — Process a command h
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strings POSIX.2 XPG4.2 Display prin
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cpio — XPG4.2 Copy in/out file ar
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watchlog — — Report on users wh
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egexp that collation sequence). Any
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egexp Summary Examples The commands
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egexp 890 z/OS V1R9.0 UNIX System S
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BPXBATCH Format Description Any oth
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BPXBATCH Usage notes and exec. BPXB
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BPXBATCH The stdparm DD will allow
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BPXBATCH Files _BPX_BATCH_SPAWN cau
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BPXBATCH 900 z/OS V1R9.0 UNIX Syste
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| | | BPXCOPY Parameters v The mess
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BPXCOPY Specifying APF or NOAPF is
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BPXCOPY * ST 10,8(13) ST 13,SAVEARE
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Localization blank) and their behav
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910 z/OS V1R9.0 UNIX System Service
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| cpio After the header information
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| | | | | | | | | | | | | | | | | |
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pax pax interchange format # The pu
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pax pax extended header regular fil
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pax linkpath The pathname of a link
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queuedefs This file indicates that
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tar Description of the Header Files
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uucp All three files are stored in
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uucp Execute Files Execute files ar
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uucp 930 z/OS V1R9.0 UNIX System Se
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TZ Environment Variable Portability
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Environment Variables 934 z/OS V1R9
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MVS data sets 936 z/OS V1R9.0 UNIX
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Table 45. Commands that Disallow Au
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dbx: threads threads: Thread Displa
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| | | | | dbx: variables $hexchars
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| | | | | | | | | | | | | | | | | |
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Licensees of this program who wish
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usr/lib/cron/queuedefs file used by
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argument (continued) printing 511 r
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yte count (continued) displaying wi
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clone output streams 693 close 566
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copy (continued) MVS data sets memb
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detect aliases 722 spelling errors
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EDITOR environment variable descrip
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environment variable (continued) _P
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environment variable (continued) PW
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file (continued) comparing two (con
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files (continued) /tmp/VIn* used by
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FWDRETR function key for OMVS comma
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IPA (Interprocedural Analysis) opti
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M MACHTYPE tcsh environment variabl
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NOSHAREAS option of OMVS command 86
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process (continued) returning (cont
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eset access time 166 Resource Acces
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shell (continued) evaluating argume
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standard error (stderr) allocating
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tcsh environment variable (continue
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term tcsh shell variable descriptio
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user ID changing to superuser 607 u
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Y y.output file used by yacc 821 y.
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z/OS V1R9.0 UNIX System Services Command ... - Christian Grothoff

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