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Extracting a certain number with grep command

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# 1  
Old 11-23-2011
Extracting a certain number with grep command
Hello Friends,

when I type grep '275' myfile.txt

it gives me all the lines including 275 but it also gives others such as 0.8827588 or 1127507.

I only want the lines including 275. How can I extract only 275 without other numbers including 275.

thanks
# 2  
Old 11-23-2011
Code:
grep -w '275' myfile.txt

man grep
Quote:
-w, --word-regexp
Select only those lines containing matches that form whole words. The test is that the matching substring must either be at the beginning
of the line, or preceded by a non-word constituent character. Similarly, it must be either at the end of the line or followed by a non-
word constituent character. Word-constituent characters are letters, digits, and the underscore.
--ahamed
This User Gave Thanks to ahamed101 For This Post:
rpf
# 3  
Old 11-23-2011
use -w option for whole word search

PHP Code:
grep -w 275 myfile.txt 
check man page of grep for more details
This User Gave Thanks to amitranjansahu For This Post:
rpf
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