Version 3 of tclsh application template

Updated 2003-01-28 16:58:30

This template code is for starting a typical tclsh application.

 #! /bin/sh
 # the next line restarts using tclsh \
 exec tclsh "$0" ${1+"$@"}

This is a little more sophisticated than the code suggested on the tclsh man page (see tcl), and is explained in great detail on exec magic.

Typical patterns to continue are:

• verify Tcl version requirements

 package require Tcl 8.4    ;# My application uses [lset]

• process stdin:

 while {[gets stdin line]>=0} {
   #do something with $line
 }

• process argv:

 foreach arg $argv {
   # do something with $arg
 }

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Category Example