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content-class: | urn:content-classes:message |
Subject: | RE: newby stupid question - cat mutiple files to new piped output files |
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Date: | Wed, 26 Nov 2003 11:26:48 +0100 |
Message-ID: | <F0D7281DAB048B438E8F5EC4ECEFBDDC175FA3@esmail.elsag.de> |
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From: | =?iso-8859-1?Q?J=F6rg_Schaible?= <Joerg DOT Schaible AT Elsag-Solutions DOT com> |
To: | <cygwin AT cygwin DOT com> |
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Ronald Landheer-Cieslak wrote on Wednesday, November 26, 2003 12:53 PM: > On Wed, Nov 26, 2003 at 04:55:34AM -0500, c wrote: >> Just started to get somewhere until i wanted to cat a heap of csv >> files and then send the unique records to a new file. I thought it >> couldnt be to hard but now my brain hurts. Can anyone help me with a >> line of code that will do the command below '$ cat > d:/pc1/filename.csv >>> uniq > d:/pc1/newfilename.csv' but i want it do it repeatidly for >> every .csv file in that directory? > This has nothing to do with Cygwin, but hey.. > > for i in /cygdrive/d/pc1/*.csv; do > cat $i | uniq > /cygdrive/d/pc1/newfilename.csv > done > > This will work once, because the new files won't be there > yet. After that, the *.csv will pick up the new files as well.. Apart from that, you will overwrite the new file each time ;-) $ for i in /cygdrive/d/pc1/*.csv; do cat $i | uniq > /cygdrive/d/pc1/$1.new; done Now you avoid that your new files are picked also and all new files have new names (a .new appended). Other approaches to do something like that: find /cygdrive/d/pc1/*.csv -exec uniq \{} \{}.new \; refer the manuals ... :) -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
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