Tcl: Tool Command Language

• Simple syntax (similar to sh, C, Lisp):

  • set a 47 ? 47

• Substitutions:

  • set b $a ? 47
  • set b [expr $a+10] ? 57

• Quoting:

  • set b "a is $a" ? a is 47
  • set b {[expr $a+10]} ? [expr $a+10]

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