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

Localization
Exit Values
Messages
$HOME/.profile for a login shell) under the privileged option or when the
real and effective UIDs are different, or the real and effective GIDs are
different.
sh uses the following localization environment variables:
v LANG
v LC_ALL
v LC_COLLATE
v LC_CTYPE
v LC_MESSAGES
v LC_SYNTAX
See Appendix F, “Localization,” on page 907 for more information.
0 Successful completion
1 Failure due to any of the following:
v The shell was invoked with an incorrect option.
v The shell was invoked to run a shell script and the command.
v A command syntax error.
v A redirection error.
v A variable expansion error.
Otherwise, the exit status of the shell defaults to the exit status of the last command
run by the shell. This default can be overridden by explicit use of the exit or return
commands.The exit status of a pipeline is the exit status of the last command in the
pipeline.
Ambiguous redirection
A redirection construct expanded to more than one pathname.
Argument too long
Any single argument to a command is limited in length (see “Limits” on
page 577). Command and parameter substitution may exceed this limit.
Cannot restore privileged state
This message occurs only when the implementation of POSIX does not
support the saved IDs option (_POSIX_SAVED_IDS). The message is
generated if you tried to use a saved ID feature to return to a privileged
state.
File file already exists
You are attempting to redirect output into an existing file, but you have
turned on the noclobber option (see the set command). If you really want
to redirect output into an existing file, use the construct >|filename, or turn
off the option with:
set +o noclobber
File descriptor number already redirected
You attempted to redirect a file descriptor that was already being redirected
in the same command. You can redirect a file descriptor only once.
sh
Chapter 2. Shell command descriptions 575