using exec tclsh "$0" "$@"

[marknel]

ofcourse, I'm new to TCL and programming as a whole.

over the last few weeks I've been teaching myself TCL with a fair amount of success. Right now, however, I can't seem to get the 'exec tclsh "$0" "$@"' to work.

It's not a major issue for me, but I'm trying to understand it.

Code example:

#!/bin/sh
exec tclsh "$0" "$@"
set dir [file dirname [info script]]
puts $dir
set pwd [exec pwd]
puts $pwd

***********
what I get when I try to run (./dirtest.tcl) is:

can't read "0": no such variable
while executing
"exec tclsh "$0" "$@""
(file "./dirtest.tcl" line 2)

what am I doing wrong?

Thanks in advance!!!

Marknel

 

[ulis]

You missed the mandatory second line of the script!
You need to have:

#!/bin/sh
#exec tclsh "$0" "$@"

at the beginning of your script.
Adding "#\" makes the magic.

For an explanation, see:

http://mini.net/tcl/706.html

ulis

 

[marknel]

ahh sometimes its the simple things..

thank you!!!

Marknel