Re: Tech tip: indirection in a script's magic #! line

[Karl J. Runge]

I find these to be pretty portable across Unixes:

#!/bin/sh
# the next line restarts using wish \
exec wish "$0" "$@"

<tcl/tk code>


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

<tcl code>


: # A comment mentioning perl
eval 'exec perl -S $0 ${1+"$@"}'
        if 0;

<perl code>


(the latter sh ":" trick is required on Linux because the kernel is a little
brain dead in parsing the #! line)

Karl


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