In the last episode (Sep 25), Arindam said: > I know csh is the shell of choice on FreeBSD. But I have this question > on Korn Shell and it would be great if somebody could explain. > > Can someone tell me a little more about the Korn Shell [[ ... ]] > double-brackets construct used for comparing string expressions. How > does it differe from the standard [ ... ] single brackets.
Different comparison operators, basically, and faster than [ because it doesn't have to fork /bin/[ . > You could tell me to RTFM but I haven't gleaned enough clarity from > such efforts already expended. They're all documented in the manpage ("ksh93" for the shells/ksh93 ports), under Conditional Expressions. Compare them with the "test" manpage. It looks like FreeBSD's test command does most of what ksh does, except for the wildcard matching of =, which is handy but can be emulated with a case statement :) -- Dan Nelson [EMAIL PROTECTED] _______________________________________________ firstname.lastname@example.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"