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Top Forums UNIX for Dummies Questions & Answers deleting specific lines from all files in a directory Post 302189236 by vrms on Friday 25th of April 2008 09:44:58 AM
Old 04-25-2008
deleting specific lines from all files in a directory

I have a directory full of text data files.

Unfortunately I need to get rid of the 7th and 8th line from them all so that I can input them into a GIS application.

I've used an awk script to do one at a time but due to the sheer number of files I need some kind of loop mechanism to automate it.

The awk script used: -
awk 'BEGIN{getline f;getline t}FNR==f,FNR==t{next}1' numbers.txt inputfile > outputfile

where numbers.txt is merely a document with the numbers 7 and 8

My guess is that I need a way of piping the output from ls (of the directory) into where the inputfile is situated and a counter to loop through till the end.

Any suggestions will be welcome (an awk suggestion would be preferable to pearl)

Thanks all
 

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IGAWK(1)							 Utility Commands							  IGAWK(1)

NAME
igawk - gawk with include files SYNOPSIS
igawk [ all gawk options ] -f program-file [ -- ] file ... igawk [ all gawk options ] [ -- ] program-text file ... DESCRIPTION
Igawk is a simple shell script that adds the ability to have ``include files'' to gawk(1). AWK programs for igawk are the same as for gawk, except that, in addition, you may have lines like @include getopt.awk in your program to include the file getopt.awk from either the current directory or one of the other directories in the search path. OPTIONS
See gawk(1) for a full description of the AWK language and the options that gawk supports. EXAMPLES
cat << EOF > test.awk @include getopt.awk BEGIN { while (getopt(ARGC, ARGV, "am:q") != -1) ... } EOF igawk -f test.awk SEE ALSO
gawk(1) Effective AWK Programming, Edition 1.0, published by the Free Software Foundation, 1995. AUTHOR
Arnold Robbins (arnold@skeeve.com). Free Software Foundation Nov 3 1999 IGAWK(1)
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