exit(3) User Contributed Perl Documentation exit(3)NAME
Tk::exit - End the application
SYNOPSIS
use Tk qw(exit);
...
B<exit>?(I<returnCode>)?;
DESCRIPTION
Terminate the process, returning returnCode to the system as the exit status. If returnCode isn't specified then it defaults to 0.
If calling "exit" from code invoked via a Tk callback then this Tk version of "exit" cleans up more reliably than using the perl "exit".
CAVEATS
Using "exit" from a forked process will terminate both the child process and the parent process. As "Tk::exit" is imported by default one
should use "CORE::exit" in the forked process instead.
KEYWORDS
exit, process
perl v5.16.3 2014-06-10 exit(3)
Check Out this Related Man Page
exit(1T) Tcl Built-In Commands exit(1T)__________________________________________________________________________________________________________________________________________________NAME
exit - End the application
SYNOPSIS
exit ?returnCode?
_________________________________________________________________DESCRIPTION
Terminate the process, returning returnCode to the system as the exit status. If returnCode isn't specified then it defaults to 0.
EXAMPLE
Since non-zero exit codes are usually interpreted as error cases by the calling process, the exit command is an important part of sig-
nalling that something fatal has gone wrong. This code fragment is useful in scripts to act as a general problem trap:
proc main {} {
# ... put the real main code in here ...
}
if {[catch {main} msg]} {
puts stderr "unexpected script error: $msg"
if {[info exist env(DEBUG)]} {
puts stderr "---- BEGIN TRACE ----"
puts stderr $errorInfo
puts stderr "---- END TRACE ----"
}
# Reserve code 1 for "expected" error exits...
exit 2
}
SEE ALSO exec(1T), tclvars(1T)KEYWORDS
exit, process
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+--------------------+-----------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+--------------------+-----------------+
|Availability | SUNWTcl |
+--------------------+-----------------+
|Interface Stability | Uncommitted |
+--------------------+-----------------+
NOTES
Source for Tcl is available on http://opensolaris.org.
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