topic Re: Is it possible to grep two or more patterns ? in Operating System - HP-UX

Is it possible to grep two or more patterns ?

yc_2 — Tue, 05 Aug 2003 07:53:27 GMT

Hi,

Is it possible to grep two or more patterns ?

eg: I want to grep root, daemon and adm in password file.

Thanks in advance,
YC

Re: Is it possible to grep two or more patterns ?

Robert-Jan Goossens — Tue, 05 Aug 2003 07:57:10 GMT

Hi,

You can use grep -e

# cat /etc/passwd | grep -e root -e daemon -e adm

Robert-Jan.

Re: Is it possible to grep two or more patterns ?

Tim Adamson_1 — Tue, 05 Aug 2003 07:57:45 GMT

Hi,

Yes, Try :

# grep -e root -e adm -e daemon /etc/passwd

Cheers!

Re: Is it possible to grep two or more patterns ?

Michael Tully — Tue, 05 Aug 2003 08:00:20 GMT

$ cat /etc/passwd | grep root | grep daemon | grep adm

Re: Is it possible to grep two or more patterns ?

Tim D Fulford — Tue, 05 Aug 2003 08:03:19 GMT

Yes, you can grep two or more patterns in one go

1 - grep -e -e ... ...

2 - egrep "|||..." ....

I prefer method 2 as it is less typing

Regards

Tim

Re: Is it possible to grep two or more patterns ?

blal — Tue, 05 Aug 2003 09:29:45 GMT

Hi

U can use egrep , which is extended grep .

syntax is

cat passswd |egrep -i 'root|daemon|adm'

Regds,
baiju

Re: Is it possible to grep two or more patterns ?

vasundhara — Wed, 06 Aug 2003 06:37:33 GMT

Hi,

egrep is the best way. you can refer man page for more options.

Regards
VJ.

Re: Is it possible to grep two or more patterns ?

twang — Wed, 06 Aug 2003 06:41:47 GMT

# grep -E 'root|daemon|adm' /etc/passwd