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| author | jilles <jilles@FreeBSD.org> | 2011-06-12 23:06:04 +0000 |
|---|---|---|
| committer | jilles <jilles@FreeBSD.org> | 2011-06-12 23:06:04 +0000 |
| commit | 91789615b49a87147298eee12c9b111d8c1b64c9 (patch) | |
| tree | b1cbd950b159dbb3fa6211ba5a7f7fb7709a612e /usr.sbin | |
| parent | 5f2600c6a978923a3904716ce73814baca63fd0f (diff) | |
| download | FreeBSD-src-91789615b49a87147298eee12c9b111d8c1b64c9.zip FreeBSD-src-91789615b49a87147298eee12c9b111d8c1b64c9.tar.gz | |
sh: Save/restore changed variables in optimized command substitution.
In optimized command substitution, save and restore any variables changed by
expansions (${var=value} and $((var=assigned))), instead of trying to
determine if an expansion may cause such changes.
If $! is referenced in optimized command substitution, do not cause jobs to
be remembered longer.
This fixes $(jobs $!) again, simplifies the man page and shortens the code.
Diffstat (limited to 'usr.sbin')
0 files changed, 0 insertions, 0 deletions
