want to grep lines which is having multiple strings pattern

[ezhilarasan_1]

Hi,

I want to grep lines which is having multiple strings pattern.
Suppose I have some files, I want to find lines which contain two words like "Ezhil" and "Arasan".

grep -i "Ezhil" *.txt --> gives all the lines ( with filename ) which contan this pattern.

I do not want all these lines, wanted to see only lines with AND another word "Arasan".

what command syntax will help for this ?

Thanks
Ezhil

[Rajeev Shukla]

Hi Ezhil,

Try this

grep -i "Ezhil" *.txt |grep -i Arasan

this will give you lines which have both Ezhil and Arasan...take care of -i for case sensitivity..

Cheers
Rajeev

[Siddhartha M]

Use:

grep Eizhil *.txt | grep Arasan

[H.Merijn Brand (procura]

both above answers are right. Perl is easier on this

# perl -ne'/Ezhil/&&/Arasan/ and print' *.txt

Enjoy, Have FUN! H.Merijn

[Hein van den Heuvel]

>> perl -ne'/Ezhil/&&/Arasan/ and print' *.txt

And without the case-insensitive requirement suggested, and without having to print the file name as requested an awk solution it is a touch easier still:

awk '/Ezhil/&&/Arasan/' *.txt

However, to fullfill all the requirements I think you'd need:

awk 'BEGIN {IGNORECASE=1} /Ezhil/&&/Arasan/ { print FILENAME ":" $0}' *.txt

So in general, I'd just stick to the multiple greps as suggested.

Hein.

[H.Merijn Brand (procura]

With filename:

# perl -ne'/Ezhil/&&/Arasan/ and print"$ARGV:$_"' *.txt

And case insensitiviness

# perl -ne'/Ezhil/i&&/Arasan/i and print"$ARGV:$_"' *.txt

And also word only (GNU grep supports -w for that, but a lot of other grep versions do not):

# perl -ne'/\bEzhil\b/i&&/\bArasan\b/i and print"$ARGV:$_"' *.txt

So using GNU grep case-insensitive

# grep -w -i ezhil *.txt | grep -w -i arasan

One small problem left there, if there is only one .txt file, in which case the file name is NOT prepended to the output. You can force that by grepping /dev/null:

# grep -w -i ezhil *.txt /dev/null | grep -w -i arasan

Enjoy, Have FUN! H.Merijn

[James R. Ferguson]

Hi:

...but adding case-insensitive matching to the perl offering is *so easy* :-))

# perl -ne' /Ezhil/i && /Arasan/i and print' *.txt

Regards!

...JRF...