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

patch
Localization
Exit Values
Portability
Related Information
diff, ed
To some extent, patch tries the same process if the patch file is in normal format
rather than context format. Because the patch file does not contain the context
information, patch has less to work with and probably creates more rejects. patch
always writes the rejectfile in context format, regardless of the format of the
patchfile.
By default, the reject file has the same name as the original file, plus the suffix
.rej. You can use –r to specify a different reject file on the command line. If the
reject file already exists, patch overwrites it.
If you do not specify –R, patch starts out with the assumption that the patch file
could be normal or reversed. Therefore if the first change is rejected, patch tries
the reverse change to see if that one works. If the reverse change is also rejected,
patch continues with other changes in the file, trying both forward changes and
reverses until one of them works. If the one that works is a forward change, patch
attempts only forward changes for the rest of the file. If the one that works is a
reverse change, patch issues a message to this effect and ask if it should treat all
the changes as reverse ones. However, if the –R option is specified on the
command line, it is assumed to hold for all changes in the patch file.
The patch file can contain output from several diff comparisons. patch treats each
collection of changes as a separate patch file, and with each, patch may prompt
you for the name of the file you want to patch.
patch uses the following localization variables:
v LANG
v LC_ALL
v LC_CTYPE
v LC_MESSAGES
v LC_TIME
v LC_SYNTAX
v NLSPATH
See Appendix F for more information.
0 Successful completion
1 There were one or more rejects
>1 An error occurred
pathchk — Check a pathname
Format
POSIX.2 User Portability Extension, X/Open Portability Guide, UNIX systems.
The –B, –F, –f, –s, and –v options are not extensions to the POSIX standard.
pathchk [–p] pathname ...
472 z/OS V1R9.0 UNIX System Services Command Reference