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I have two sets of files containing ip addresses

file 1

1.1.1.1
2.2.2.2
3.3.3.3

file 2 

1.1.1.1
2.2.2.2
4.4.4.4
5.5.5.5

I need to compare two file and print the entry present in file 1 but not in file 2, that is desire output should be

3.3.3.3
user565262
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    Look at the "Set Complement" section of the accepted answer to the question this is marked a duplicate of. – Kusalananda Mar 14 '23 at 09:40
  • Try the man page for the comm command. Note it only works for sorted files (which yours appear to be). If this is not strictly correct, you would need to pre-sort both files. – Paul_Pedant Mar 14 '23 at 09:41
  • Anyway: diff <(sort f1) <(sort f2) |grep "<"|cut -d" " -f 2 – K-attila- Mar 14 '23 at 10:03
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    @K-att- You would not need grep nor cut if you use comm in place of diff. The diff utility is really only useful to visually inspect differences between files or for generating patches. Note too that in the general case, your grep would match the < character anywhere on the line, and the cut command would need to be adjusted if the lines contain spaces. – Kusalananda Mar 14 '23 at 10:21
  • Indeed. I thought it's a special file, but you're right. – K-attila- Mar 14 '23 at 14:59

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