F5 uses Tcl as the interpreter for iRules. Many people often ask why that is. This questions is usually followed up by an immediate, "Why not Perl?" or "Why not Java" or "Why not <fill in my preferre...
@Steve, I worked out of the Deerfield office and I contributed to the Command Center. Since there were no SG resources assigned I had to do the work myself. tcl was fun in that context. The hard part was C.