command to get common lines from two files 1

[tech123786]

Hello,
This is a general unix question. I have two files in which they have some 300 server names listed line by line . Some of the lines are common in both the files. I need to get these names which are similar in both the files.Is there any command or utility to get these lines?
I know I can use cmp or diff to compare the files for the differences. But I need to get the common names in both the files.
Thanks

 

[p5wizard]

check out man page for comm command

comm -12 file1 file2

but both files need to be sorted

if not sorted, then:

sort -o file1.sorted file1
sort -o file2.sorted file2
comm -12 file1.sorted file2.sorted

HTH,

p5wizard

 

[tech123786]

p5wizard,

Thanks and a star.