coreutils instructions
Dan Nicholson
dbn.lists at gmail.com
Fri Mar 20 17:26:42 MDT 2009
On Fri, Mar 20, 2009 at 11:15 AM, Bruce Dubbs <bruce.dubbs at gmail.com> wrote:
> Dan Nicholson wrote:
>
>> A while back I sanitized the bootscripts for POSIX sh compatibility,
>> and I think DJ has been maintaining that goal. I think it's a nice
>> (and obtainable) goal to target since having sh != bash can save on
>> bloat.
>
> Save on bloat? For what? My copy of bash is 500K. dash is about 80K.
Right, bash is 4 times the size of dash. That adds up when you're
forking the shell a hundred times or whatever during boot. The last
time I tested, it shaved like 4 seconds off boot using dash instead of
bash.
http://linuxfromscratch.org/pipermail/lfs-support/2008-February/034192.html
I use bash all the time and I wouldn't consider using a minimal posix
shell for my login shell. For any non-trivial script, I use bash.
However, for a generic shell script, I don't know why you couldn't
make it posix compliant. That allows people to have flexibility
without much loss. The bootscripts are pretty simple.
Of course, you can keep bash as /bin/sh if you like. Or make it zsh or
ksh or dash or posh...
--
Dan
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