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UNIX® Shells by Example, Third Edition
book

UNIX® Shells by Example, Third Edition

by Ellie Quigley
October 2001
Intermediate to advanced content levelIntermediate to advanced
1040 pages
22h 50m
English
Pearson
Content preview from UNIX® Shells by Example, Third Edition

3.4. grep with Options

The grep command has a number of options that control its behavior. Not all versions of UNIX support exactly the same options, so be sure to check your man pages for a complete list.

% cat datafile
				northwest          NW   Charles Main      3.0    .98    3    34
				western            WE   Sharon Gray       53     .97    5    23
				southwest          SW   Lewis Dalsass     2.7    .8     2    18
				southern           SO   Suan Chin         5.1    .95    4    15
				southeast          SE   Patricia Hemenway 4.0    .7     4    17
				eastern            EA   TB Savage         4.4    .84    5    20
				northeast          NE   AM Main Jr.       5.1    .94    3    13
				north              NO   Margot Weber      4.5    .89    5     9
				central            CT   Ann Stephens      5.7    .94    5    13
			
Example 3.23.
					grep –n '^south' datafile
					3:southwest      SW     Lewis Dalsass       2.7   .8    2   18
					4:southern       SO     Suan Chin           5.1   .95   4   15
					5:southeast      SE     Patricia Hemenway   4.0   .7    4   17
				

EXPLANATION

The –n option precedes ...

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Publisher Resources

ISBN: 013066538XPurchase book