return(1)
NAME
exit, return, goto - shell built-in functions to enable the
execution of the shell to advance beyond its sequence of
steps
SYNOPSIS
sh
exit [n]
return [n]
csh
exit [ ( expr )]
goto label
ksh
*exit [n]
*return [n]
DESCRIPTION
sh
exit will cause the calling shell or shell script to exit
with the exit status specified by n. If n is omitted the
exit status is that of the last command executed (an EOF
will also cause the shell to exit.)
return causes a function to exit with the return value
specified by n. If n is omitted, the return status is that
of the last command executed.
csh
exit will cause the calling shell or shell script to exit,
either with the value of the status variable or with the
value specified by the expression expr.
The goto built-in uses a specified label as a search string
amongst commands. The shell rewinds its input as much as
possible and searches for a line of the form label: possibly
preceded by space or tab characters. Execution continues
after the indicated line. It is an error to jump to a label
that occurs between a while or for built-in command and its
corresponding end.
ksh
exit will cause the calling shell or shell script to exit
with the exit status specified by n. The value will be the
least significant 8 bits of the specified status. If n is
omitted then the exit status is that of the last command
executed. When exit occurs when executing a trap, the
last command refers to the command that executed before the
trap was invoked. An end-of-file will also cause the shell
to exit except for a shell which has the ignoreeof option
(See set below) turned on.
return causes a shell function or '.' script to return to
the invoking script with the return status specified by n.
The value will be the least significant 8 bits of the speci-
fied status. If n is omitted then the return status is that
of the last command executed. If return is invoked while
not in a function or a '.' script, then it is the same as an
exit.
On this man page, ksh(1) commands that are preceded by one
or two * (asterisks) are treated specially in the following
ways:
1. Variable assignment lists preceding the command remain in
effect when the command completes.
2. I/O redirections are processed after variable assign-
ments.
3. Errors cause a script that contains them to abort.
4. Words, following a command preceded by ** that are in the
format of a variable assignment, are expanded with the
same rules as a variable assignment. This means that
tilde substitution is performed after the = sign and word
splitting and file name generation are not performed.
ATTRIBUTES
See attributes(5) for descriptions of the following attri-
butes:
____________________________________________________________
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
| Availability | SUNWcsu |
|_____________________________|_____________________________|
SEE ALSO
break(1), csh(1), ksh(1), sh(1), attributes(5)
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