This enables low level TCL script to be written on the command line. The remains of the line (following the 'tcl' command) is interpreted as a raw TCL script. For example the following command displays the numbers 1-10 > tcl for {set i 0} {$i < 10} {incr i} {puts "number: $i"} number: 1 number: 2 number: 3 number: 4 number: 5 number: 6 number: 7 number: 8 number: 9 number: 10 > NB. Be aware that variable expansion of the form ${foobar} is valid both in the <ACTION> tag and in TCL. The quoting of such variables will always be interpreted as clish variables, and will not appear in the TCL script. ${command}