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Re: Copy rows of file to new document

by nagalenoj (Friar)
on Jan 24, 2013 at 09:19 UTC ( #1015112=note: print w/ replies, xml ) Need Help??


in reply to Copy rows of file to new document

If you are using linux machine. You've been already blessed with grep command.

Something like,

grep -rE "(make|model|year)" dir/
Filter top 30 lines as given in tmharish's reply with xargs and head.


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Re^2: Copy rows of file to new document
by phineas629 (Novice) on Jan 25, 2013 at 03:33 UTC

    My folder of files is 'c:\vehicles'. The file I want to write to is 'vehicles.txt' and located in 'c:\'. I tried the following code work for what you suggested. I know I've written it wrong. What should I do to correct it?

    C:\vehicles $ ls -A | xargs head -qn 30 | perl -Mstrict -wne 'if( $ + +_ =~ /(make)|(model)|(year)/ ) { print "$_"; }' > vehicles.txt grep -rE "(make|model|year)" c:

      Only works on Linux

        What if I have cygwin?

      What is $ +_? Do you mean $_?

      If so, then you can omit it and use just: 'if( /(make)|(model)|(year)/ ) { print "$_"; }'.

      Whether that fixes all your problems I doubt; but its one less to deal with.


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