on Wed, Sep 17, 2003 at 08:08:26AM +0800, csj (csj@zapo.net) wrote:
> At Tue, 16 Sep 2003 17:08:51 +0200,
> Matthias Czapla wrote:
> >
> > On Tue, Sep 16, 2003 at 07:39:39AM -0700, Ric Otte wrote:
> > > Hi, I would like to run all of the files in some directories
> > > through sed, in order to edit the files. I can do it for
> > > individual files by typing: cat filename|sed command>filename
> > > But that requires me to run that command for each file. I
> > > was wondering if anyone could 1) give me a reference to a
> > > simple bash tutorial that will explain how to set up a script
> > > to do things like this,
> >
> > http://www.tldp.org/HOWTO/Bash-Prog-Intro-HOWTO.html
> >
> > > and 2) tell me how to do it.
> >
> > for f in *; do tmp=`tempfile`; cat $f | sed command > $tmp ; mv $tmp $f; done
>
> Is there anything intrinsically wrong with:
>
> find directory -name "*.foo" | xargs sed -i -f sed_script
Well:
- It outputs everything to stdout, rather than a named file for each
input.
- You need to restrict the number of input files with 'xargs -n 1'
- You could run into problems with filenames containing embeded IFS
characters. "-print0 / -0" are useful arguments.
Personally, I'd do it as:
for f in $( find path -name \*.foo )
do sed -e 'stuff' < "$f" > "$f.tmp" && mv "$f.tmp" "$f"; done
Peace.
--
Karsten M. Self <kmself@ix.netcom.com> http://kmself.home.netcom.com/
What Part of "Gestalt" don't you understand?
SCO is the thief who puts a gun to his own head and says give me
your money or I'll shoot.
-- Bruce Perens http://slashdot.org/comments.pl?sid=56225&&cid=5456337
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