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

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Exit Value
Portability
Related Information
sh, tcsh
v LC_MESSAGES
v LC_SYNTAX
v NLSPATH
See Appendix F for more information.
echo always returns the following exit status value:
0 Successful completion
POSIX.2, X/Open Portability Guide, UNIX System V.
The POSIX.2 standard does not include escape sequences, so a strictly conforming
application cannot use them. printf is suggested as a replacement.
ed — Use the ed line-oriented text editor
Format
Description
Options
Addresses
ed [ –bs] [–p prompt] [file]
ed is a line-oriented text editor that lets you manipulate text files interactively. ed
reads the text of a file into memory and stores it in an area called a buffer. Various
subcommands let you edit the text in the buffer. You can also write the contents of
the buffer back out to the file, thereby overwriting the old contents of the file.
–b Lets you edit larger files by restricting the amount of memory dedicated to
paging. This frequently makes ed run slower.
–p prompt
Displays the given prompt string prompting you to input a subcommand. By
default, ed does not usually prompt for subcommand input. See the
description of the P subcommand for more on subcommand prompting (see
“Subcommands” on page 249).
–s Puts ed into a quiet mode, in which e, E, r, and w, subcommands do not
display file size counts; the q and e subcommands do not check buffer
modification; and ! is not displayed after calling the shell to run a
subcommand. This mode is particularly useful when you invoke ed from
within a shell script.
If the optional file argument is present on the command line, ed reads the specified
file into the editor by simulating an efile subcommand.
You can prefix subcommands in ed with zero, one, or two addresses. These
addresses let you refer to single lines or ranges of lines in the buffer. You do not
echo
Chapter 2. Shell command descriptions 247