> Linux Reviews > man >

exit

End the application


  1. exit.9.man


1. exit.9.man

Manpage of exit

exit

Section: Tcl Built-In Commands (n)
Updated:
Index Return to Main Contents



 

NAME

exit - End the application  

SYNOPSIS

exit ?returnCode?



 

DESCRIPTION

Terminate the process, returning returnCode to the system as the exit status. If returnCode is not 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 signaling 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 options]} {
    puts stderr "unexpected script error: $msg"
    if {[info exist env(DEBUG)]} {
        puts stderr "---- BEGIN TRACE ----"
        puts stderr [dict get $options -errorinfo]
        puts stderr "---- END TRACE ----"
    }

    # Reserve code 1 for "expected" error exits...
    exit 2
}

 

SEE ALSO

exec(n)

 

KEYWORDS

exit, process


 

Index

NAME
SYNOPSIS
DESCRIPTION
EXAMPLE
SEE ALSO
KEYWORDS

This document was created by man2html using the manual pages.
Time: 17:33:36 GMT, October 23, 2013

SVENSKA - SVENSKA - cs - da - SVENSKA - SVENSKA - SVENSKA - SVENSKA - ja - nl - pl - ro - SVENSKA - zh_CN