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Top Forums Shell Programming and Scripting Grep command to ignore line starting with hyphen Post 302947552 by Srinraj Rao on Thursday 18th of June 2015 06:40:18 PM
Old 06-18-2015
Grep command to ignore line starting with hyphen

Hi,

I want to read a file line by line and exclude the lines that are beginning with special characters. The below code is working fine except when the line starts with hyphen (-) in the file.

Code:
for TEST in `cat $FILE | grep -E -v '#|/+' | awk '{FS=":"}NF > 0{print $1}'`
do
.
.
done

How should the grep statement be modified to ignore the line starting with hyphen?

Thanks
Srinraj

Last edited by Don Cragun; 06-19-2015 at 02:32 AM.. Reason: Add CODE tags.
 

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GREP(1) 						      General Commands Manual							   GREP(1)

NAME
grep - search a file for lines containing a given pattern SYNOPSIS
grep [-elnsv] pattern [file] ... OPTIONS
-e -e pattern is the same as pattern -c Print a count of lines matched -i Ignore case -l Print file names, no lines -n Print line numbers -s Status only, no printed output -v Select lines that do not match EXAMPLES
grep mouse file # Find lines in file containing mouse grep [0-9] file # Print lines containing a digit DESCRIPTION
Grep searches one or more files (by default, stdin) and selects out all the lines that match the pattern. All the regular expressions accepted by ed and mined are allowed. In addition, + can be used instead of * to mean 1 or more occurrences, ? can be used to mean 0 or 1 occurrences, and | can be used between two regular expressions to mean either one of them. Parentheses can be used for grouping. If a match is found, exit status 0 is returned. If no match is found, exit status 1 is returned. If an error is detected, exit status 2 is returned. SEE ALSO
cgrep(1), fgrep(1), sed(1), awk(9). GREP(1)
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