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man pages section 1: User Commands

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Updated: Thursday, June 13, 2019
 
 

exit (1t)

Name

exit - End the application

Synopsis

exit ?returnCode?

Description

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 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 exists 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
              }


ATTRIBUTES
       See attributes(7) for descriptions of the following attributes:


       +---------------+------------------+
       |ATTRIBUTE TYPE | ATTRIBUTE VALUE  |
       +---------------+------------------+
       |Availability   | runtime/tcl-8    |
       +---------------+------------------+
       |Stability      | Uncommitted      |
       +---------------+------------------+
SEE ALSO
       exec(n)

KEYWORDS
       abort, exit, process



NOTES
       This     software     was    built    from    source    available    at
       https://github.com/oracle/solaris-userland.   The  original   community
       source was downloaded from  http://prdownloads.sourceforge.net/tcl/tcl-
       core8.6.7-src.tar.gz

       Further information about this software can be found on the open source
       community website at https://www.tcl.tk/.



Tcl                                                                   exit(1t)