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greping out multiple words

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# 1  
Old 08-20-2006
greping out multiple words
now i have a lot of words i need to grep out of a certain line but i have to keep typing this:


ex

ls -l | grep -v this | grep -v that | grep -v those | grep -v them .....


i mean, it goes on like that. there has to be a way to grep all those words without having to specify that "grep -v"

does anyone know how to do this?
Terrible
# 2  
Old 08-20-2006
Quote:
Originally Posted by Terrible
now i have a lot of words i need to grep out of a certain line but i have to keep typing this:


ex

ls -l | grep -v this | grep -v that | grep -v those | grep -v them .....


i mean, it goes on like that. there has to be a way to grep all those words without having to specify that "grep -v"

does anyone know how to do this?
I dont have access to a unix box right now. But there is a -E flag. Try grep -vE (this|that|those|them)
# 3  
Old 08-20-2006
grep available in /usr/bin/grep doesnt have the -E option

make use of the grep in
Code:
/usr/xpg4/bin/grep -E 'some1|some2' filename

# 4  
Old 08-20-2006
Quote:
Originally Posted by matrixmadhan
grep available in /usr/bin/grep doesnt have the -E option

make use of the grep in
Code:
/usr/xpg4/bin/grep -E 'some1|some2' filename


thanks guys. but i need to grep out quite more than 2 words. will the above suffice?
Terrible
# 5  
Old 08-20-2006
yes very much...

just extend the list delimited by '|'
# 6  
Old 08-20-2006
U can use egrep
To grep multiple words in file, u can use egrep.

/uday> egrep 'word1|word2|word3|word4' filename

Uday
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