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awk get search pattern from a file.

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http://www.unix.com – Here Is a problem I am facing with awk. Query --> I want to search for a string in a file and print next 15 lines below the matched string. 1.We do not have GNU grep so cannot use grep -A or grep -B commands. 2. Instead of passing the search pattern as a string to awk. I want the awk to read the pattern from a file. This is the command which I am using: Code: cat fulldatafile.txt | awk 'c-->0;/'`cat IDnumber.txt`'/{c=17}' So what I did: cat the full data file (file which contains information associated with ID) and then using the awk command I want to search for the only singl (HowTos)

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Submitted by suki on 07/04/2012 – Made popular on 07/04/2012

Stories similar to awk get search pattern from a file.

Hi everyone, I am new to shell scripting, and would appreciate your help on following problem.

I need to search a file for a pattern, then get the number of each line that matches the given pattern. Then I need to search those specific line numbers from the first file in a second file and print the entire lines.

I tried with grep -n 'pattern' from the first file, which gives me:

21: pat

Problem Statement:-

I need to search a particular `String Pattern` in around `10000 files` and find the records which contains that `particular pattern`.

I would like to write a newline delimeted rules file using PCREs for use with the grep command. Grep has the option -f to obtain the search pattern from a file, and option -P to search using PCREs. However, these two options do not work together.

Help with grep and if 40 weeks 4 hours ago

Hi,

I'm working on a script which includes a part where i need to search for a string first using "grep" and then compare it with another variable using "if".

It should be something like

a=search pattern using grep

if [ $a = $b ] then ..

The problem i'm facing is, in case the grep returns no result i get a syntax error in the if section.

Hi All,

i'm writing a script where i have to grep for a pattern and the 3 lines after the pattern and comment them out.

Note that i have to do this for multiple files, i am able to grep the pattern and the next 3 lines but since solaris does not recognize the -i option, i was wondering if there was any workaround.

I am trying to search a file for a patterns ERR-[0-9][0-9][0-9][0-9][0-9] in a file and return a count for each of the error reported

Input file is a free flowing file without any format

example of output ERR-00001=5 .... ERR-01010=10 ..... ERR-99999=10

Hi friends,

I am looking for sed command/script that would search for a given fixed pattern on odd lines and then if it matches, prints the matching pattern and the next line.

inexact text search 1 year 3 weeks ago

Is there any utility like grep or even uniq but for inexact search or I should write it myself?

I mean it will look at 90% (number may vary) matching, or smth like that. For example I have file with several strings:

abc123 abd123 abc223 qwe938

In this case such utility should return the first three string or say they are similar.

Am trying to grep pattern from dozen files .tar.gz but its very slow

am using

tar -ztf file.tar.gz | while read FILENAME do if tar -zxf file.tar.gz "$FILENAME" -O | grep "string" > /dev/null then echo "$FILENAME contains string" fi done