src/usr.bin/alias, branch releng/9.3

Make hash, type and ulimit available via execve().

2010-04-25T17:38:53Z

These are specified by POSIX but are not special builtins, and therefore need to be available via execve() and utilities like time, nohup, xargs. (Note that hash was moved from the XSI option to the base in the 2008 standard.) Like most of the POSIX "regular builtin commands", these need to be executed in a shell environment for full functionality, although they may still be of some use outside one. Unlike the POSIX special and regular builtin commands, POSIX does not require these to be found before a PATH search, although that could be an oversight. Like some of the utilities already provided by usr.bin/alias, these may lead to confusing results when invoked from csh(1).

Use the "builtin" shell function to make sure that the requested

2005-10-24T22:32:19Z

command is handled as a shell function. This avoids the following peculiar behaviour when /usr/bin is on a case-insensitive filesystem: # READ foo (... long pause, depending upon the amount of swap space available ...) sh: Resource temporarily unavailable. Reported by: I can't remember; someone on IRC. MFC after: 1 week

Start the dreaded NOFOO -> NO_FOO conversion.

2004-12-21T08:47:35Z

OK'ed by: core

Mark bits that do not require an object directory as such.

2003-04-01T12:37:54Z

Fix installworld.

2002-07-17T15:35:31Z

Submitted by: Udo Schweigert

A little bit more thought has resulted in a generic script which can

2002-07-16T22:16:05Z

implement any of the useless POSIX-required ``regular shell builtin'' utilities, saving one frag and one inode each. The script moves to usr.bin/alias which is alphabetically the first of these commands.