6 ms·

F5 load balancers still use Tcl, albeit a modified and optimised version. If anyone is reading this article and thinking "Gee, I wish I could get a job writing

• marktangotango 12y ago
  iRules are a horror that should've been killed at birth.
• ciupicri 12y ago
  For me it's more like gee, I had a job writing Tcl and it was so much "fun". I've just tried the example from "Read messages chunk by available chunk" and got: invalid command name "handle_data sock4" while executing "[list handle_data $chan] " (procedure "handle_client" line 8) invoked from within "handle_client sock4 127.0.0.1 40642" I replaced [list handle_data $chan] with a plain handle_data $chan, but then another bug come up: invalid command name "buf" while executing "buf sock4,data_ready write" (write trace on "buf(sock4,data_ready)") invoked from within "set buf($chan,data_ready) 0" (procedure "handle_data" line 4) The fun never stops :-) In a way Tcl makes shell scripting (Bash) look wonderful because at least there you can't expect much from it, whereas Tcl presents itself more like a "real", full-blown programming language.
  • adunsmoor 12y ago
    Your error looks like there might be an extra space after the line continuation (backslash) in the example. The trace command is split in to 2 lines for readability but the web page's formatting introduced a hidden space if you try to copy/paste the example in to a tcl script.
    • ciupicri 12y ago
      Yes, you're right.
• kjs3 12y ago
  The Cisco IOS operating system includes TCL scripting as well.