How to grep particular line from a file?

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How to grep particular line from a file?

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05-09-2014

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How to grep particular line from a file?

Hi,

I am having file like

Code:

$ cat file

sumanth
anil
harish

from the file i want to grep one line at a time depending on the line number.And can it work through grep -n...

TIA

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Please use code tags next time for your code and data. Even if its this small... Thanks

Last edited by vbe; 05-09-2014 at 11:58 AM..

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05-09-2014

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To do a grep one line at a time would be to read line by line, e.g using a loop

P:S. please dont post in AIX something not OS specifc, threat will be moved...

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@Sumanth:could you explain it bit more what exactly u want or expected output

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Hi,

The scenario is... I am having a text file it is having 100's of lines..
from that one i have to grep a line according to the user input ... Here I am taking line number as a parameter....say if user gives 3 as a line number, then it should grep only contents in 3rd line

TIA..

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Please give us a sample input file, sample line number, and explain how you know what you're looking for on that line, and then show us what output you want if you find it and what output you want if you don't find it.

Do you want to use a fixed string, a basic regular expression, or an extended regular expression to search for a matching line?

Don Cragun

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05-12-2014

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I'm having file like,

Code:

$cat file

Code:

0wdu12345
oghi6745211
utyu672921
tyug1562722

if user give 3(Line number) as input then it should grep the contents in the 3rd line here it is utyu672921.

TIA

Last edited by Don Cragun; 05-12-2014 at 02:27 PM.. Reason: Add CODE tags again.

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try

Code:

awk 'NR==3{ print; }' filename

or

Code:

sed -n '3,3p'  filename

or

Code:

awk 'NR==3' filename

This User Gave Thanks to Makarand Dodmis For This Post:

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