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what is the use of "grep" command?
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Answer / bharath
grep command is used to search a string or a keyword in a
file.
syntax:
grep 'keyword' file
| Is This Answer Correct ? | 9 Yes | 3 No |
Answer / kiran sangeri
grep is one of many standard UNIX utilities. It searches
files for specified words or patterns. First clear the
screen, then type
% grep science science.txt
As you can see, grep has printed out each line containg the
word science.
Or has it ????
Try typing
% grep Science science.txt
The grep command is case sensitive; it distinguishes
between Science and science.
To ignore upper/lower case distinctions, use the -i option,
i.e. type
% grep -i science science.txt
To search for a phrase or pattern, you must enclose it in
single quotes (the apostrophe symbol). For example to
search for spinning top, type
% grep -i 'spinning top' science.txt
Some of the other options of grep are:
-v display those lines that do NOT match
-n precede each matching line with the line number
-c print only the total count of matched lines
| Is This Answer Correct ? | 3 Yes | 1 No |
Answer / vasu
To filter desire data.
Ex: In history, to see all the commands which have
particular word like cd
#history | grep cd
| Is This Answer Correct ? | 2 Yes | 0 No |
Answer / kk11749
for example I need for list of directories means
ls -r | grep "^d"
It will be display only directories
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / durgesh srivastava
search pattern of a file system it is use of grep
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / pavankumar
grep is used to matching a pattern in a file...
we can use regular expressions in conjuction with grep.
suppose for example if you want to find the all occurences of
pavan in a file, you can use...
grep pavan *
it searches all files in the current directory files and
returns all those files which contain pavan.
| Is This Answer Correct ? | 0 Yes | 1 No |
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