opendarwin man page for exit

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

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NAME
       exit - End the application

SYNOPSIS
       exit ?returnCode?
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DESCRIPTION
       Terminate the process, returning returnCode to the system as the exit status.  If returnCode isn't specified then it defaults to 0.

SEE ALSO
       exec(n), tclvars(n)

KEYWORDS
       exit, process

Tcl																	   exit(n)