LinuxQuestions.org - trim lines based on other file.

- Linux - Newbie (https://www.linuxquestions.org/questions/linux-newbie-8/)

- - trim lines based on other file. (https://www.linuxquestions.org/questions/linux-newbie-8/trim-lines-based-on-other-file-542818/)

hepburnenthorpe

04-02-2007 08:36 PM

trim lines based on other file.

I have 4 files.

master

Code:

a

b

c

d

e

f

Code:

a

c

d

Code:

b

c

e

Code:

a

b

What I need to do is remove all lines from master excepting those that do NOT occur within any of the other three files (p1,p2,p3). So in this case master would end up with...

master

Code:

f

Ive tried numerous combinations of looping the the different files but just can't get my head around it.

Can anyone give me a hand?

Junior Hacker

04-02-2007 10:07 PM

I can't get my head in it, never mind around it!

All times are GMT -5. The time now is 03:23 AM.