Home/ Questions/Q 833791
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-15T04:34:24+00:00

How can I get the following output using linux command by comparing two text

  • 0

How can I get the following output using linux command by comparing two text files? Thanks.

file1:

site110
site120

file2(Updated):

domain1.com - site110
domain2.com - site111
domain3.com - site112
domain4.com - site113
domain5.com - site120
domain6.com - site1201
domain7.com - site1202

output:

domain1.com - site110
domain5.com - site120

If I use:

grep -f file1 file2

the output will be:

domain1.com - site110
domain5.com - site120
domain6.com - site1201
domain7.com - site1202

which the last two lines are not what I want. Thanks.

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. Editorial Team

    From the grep manpage:

       -f FILE, --file=FILE
          Obtain  patterns  from  FILE,  one  per  line.   The  empty file
          contains zero patterns, and therefore matches nothing.   (-f  is
          specified by POSIX.)

    Therefore:

    grep -f file1 file2

domain1.com - site110
domain5.com - site120
    • 0