UNIX for Dummies Questions & Answers

can you help me about followings, what they do


grep a b c

grep 'boswana.*birds' *.htm*

if you have access to a UNIX system, type:

Code:

man grep

Grep is basically a search command.

It has many different uses, below are the ones I'm aware of;

Code:

grep -i *whatever your searching for *

This will search all files in the directory you are currently in for "whatever your searching for" Making sure the * are kept in place.

Code:

/usr/ucb/ps -auxwwww | grep *whatever*

Searches for processes running as the user you are logged on as with "whatever" in there file name\config. This can also be piped through another grep to refine the search more so.

Did you give that a try first ?

See what this command results in:

Code:

[ysawant@sms104a smsc]$ grep -i *whatever your searching for *
grep: your: No such file or directory
grep: searching: No such file or directory
grep: for: No such file or directory
[ysawant@sms104a smsc]$

This command should be:

Code:

grep -i "*whatever your searching for" *