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Full Discussion: Grep on a list
Top Forums UNIX for Dummies Questions & Answers Grep on a list Post 302932015 by RavinderSingh13 on Sunday 18th of January 2015 08:29:16 AM
Old 01-18-2015
Hello jyu429,

Welcome to forums, kindly use code tags for commands/codes/Inputs used by you in the posts as per forum rules. Now for your requirement please do let us know the complete input and expected output for same, it will help us to advise you, based on some assumptions following you can take as a start up.

Lets say we have following input file.
Code:
cat test1
ABSCDET something*bla sdheufhkrm349875  eruhg38t jqd7842r
AJBUWEBDEK something*bla r3jgf743yt4in 34uf3984 u4hf9843y

Then following is the code for same, which may help.
Code:
awk '{gsub(/\*.*/,"*",$0);print}'  test1

Output will be as follows.
Code:
ABSCDET something*
AJBUWEBDEK something*

Thanks,
R. Singh
 

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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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