exit(1) User Commands exit(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 exe‐
cuted.
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 charac‐
ters. 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 specified 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 assignments.
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 vari‐
able 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 attributes:
┌─────────────────────────────┬─────────────────────────────┐
│ ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
│Availability │SUNWcsu │
└─────────────────────────────┴─────────────────────────────┘
SEE ALSObreak(1), csh(1), ksh(1), sh(1), attributes(5)SunOS 5.10 15 Apr 1994 exit(1)
