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Top Forums Shell Programming and Scripting Grep command to ignore line starting with hyphen Post 302947554 by Aia on Thursday 18th of June 2015 07:02:04 PM
Old 06-18-2015
Code:
for TEST in `cat $FILE | grep -E -v '#|/+' | awk '{FS=":"}NF > 0{print $1}'`

The thing is that grep does not need cat.
grep pattern $FILE can read the file for itself.
awk does not need cat or grep. awk can exclude as well on its own.
Code:
awk '$0 !~ /pattern to exclude/ {action}' $FILE

As an example if you want to exclude all these character in the beginning of a line: `#/-+'
Code:
awk '$1 ~ /^[^-#/+]/' $FILE


Last edited by Aia; 06-18-2015 at 08:12 PM.. Reason: Adds beginning of the line anchor
 

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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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