From: Stephane CHAZELAS <Stephane_CHAZELAS@yahoo.fr>
To: Zsh Users <zsh-users@sunsite.dk>
Subject: Re: copying files with shell built in functions?
Date: Fri, 28 Mar 2003 18:46:09 +0100 [thread overview]
Message-ID: <20030328184608.D116@pcchazelas.free.fr> (raw)
In-Reply-To: <20030328165928.GB14934@gmx.de>; from dominik.vogt@gmx.de on Fri, Mar 28, 2003 at 05:59:29PM +0100
On Fri, Mar 28, 2003 at 05:59:29PM +0100, Dominik Vogt wrote:
[...]
> $ while read <options> X; do echo <options> "$X"; done < ifile > ofile
>
> and
>
> $ echo $(< ifile) > ofile
bash can't handle '\0', so forget it.
If you have zsh 4, you probably have a mapfile module.
zmodload zsh/mapfile
print -rn -- $mapfile[ifile] > ofile
Also note the zsh/files modules which provides builtin
ln/mv/chown...
If you don't have modules (or can't load them anymore because
your libc is gone), you should still be able to do :
while IFS= read -r line; do
print -r -- $line
done < ifile > ofile
You'll probably end-up with a trailing \n, but that shouldn't
harm.
But I'm surprises you don't have at least one statically linked
ln or mv somewhere.
Here, I have a statically linked /sbin/zsh with mapfile and
files built in. That can reveal useful.
Also note the "vared mapfile[somefile]" for a text editor.
--
Stéphane
next prev parent reply other threads:[~2003-03-28 17:56 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-03-28 16:59 Dominik Vogt
2003-03-28 17:30 ` Borzenkov Andrey
2003-03-28 17:46 ` Stephane CHAZELAS [this message]
2003-03-28 18:00 ` Zefram
2003-03-28 19:03 ` Bart Schaefer
2003-03-28 19:11 ` Stephane CHAZELAS
2003-03-29 3:46 ` Bart Schaefer
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