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On Sat, Aug 04, 2001 at 10:45:22AM -0400, Jerry Feldman wrote: > Actually ksh does not implement [ as a builtin. It uses [[ as a builtin. > Derek Martin wrote: Having been told in a shell scripting class I took in 1996 that virtually all modern shells implemented test as built-ins, I was curious enough about this to download the source for ksh93 from AT&T's website: http://www.research.att.com/sw/download/ Actually, though the man page included does not say so (it refers you to the man page for test(1)), ksh93 does implement test (and [) as a shell built-in command. From src/cmd/bltin/test.c: /* * test expression * [ expression ] * * David Korn * AT&T Labs * research!dgk * */ -- --------------------------------------------------- Derek Martin | Unix/Linux geek ddm at pizzashack.org | GnuPG Key ID: 0x81CFE75D Retrieve my public key at http://pgp.mit.edu - Subcription/unsubscription/info requests: send e-mail with "subscribe", "unsubscribe", or "info" on the first line of the message body to discuss-request at blu.org (Subject line is ignored).
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