On Thu, 28 Oct 2010 09:17:12 -0700, Chip Camden <[email protected]>
wrote:
> Perhaps someone with more sh fu can transform the
> 'if' paragraph into a one-liner at least. When I tried to do so, I got an
> unexpected ; error.
Not tested, but this should do the trick:
#!/bin/sh
if [ $# -ge 1 ] && ( exec cat $@ | $0; exit )
while read data; do echo $data; done
The ; denotes a line break, means that you can use EITHER ; or
a newline. In the original construct,
if [ $# -ge 1 ]; then
exec cat $@ | $0
exit
fi
you can change the ; into
if [ $# -ge 1 ]
then
exec cat $@ | $0
exit
fi
which is often seen in scripts. In this case, no ; is required (or
even allowed). The same rule applies for the while/do/done iterator.
--
Polytropon
Magdeburg, Germany
Happy FreeBSD user since 4.0
Andra moi ennepe, Mousa, ...
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