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exit(n)                      Tcl Built-In Commands                     exit(n)




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

       abort, exit, process



Tcl                                                                    exit(n)

tcl 8.6.0 - Generated Tue Jan 8 16:14:37 CST 2013
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