#!/bin/sh
# A Tcl comment, whose contents don't matter
exec tclsh "$0" "$@"

exec tclsh $0 ${1+$@}

#!/usr/bin/env tclsh
puts $tcl_version

8.5

#!/usr/bin/tclsh
puts $tcl_version

pax> cat qq.tcsh
#!/usr/bin/tclsh
puts $argc
puts $argv

pax> qq.tcsh my name is pax
4
my name is pax

#!/bin/sh
# A Tcl comment, whose contents don't matter
exec /some/very/long/path/to/find/a/tcl/executable/path/tclsh "$0" "$@"

#!/usr/bin/env tclsh