here is the question: I have two files: file1: aaa bbb ccc ddd file2:

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Editorial Team

Asked: June 15, 20262026-06-15T02:30:38+00:00 2026-06-15T02:30:38+00:00

here is the question: I have two files:

file1:

aaa
bbb
ccc
ddd

file2:

bbb
ddd

HOW TO USE DIFF TO GET THIS OUTPUT (only differences)

aaa
ccc

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Editorial Team · Answer 1 · 2026-06-15T02:30:39+00:00

Editorial Team

If what you want is records unique to file1, then :

$ comm -23 <(sort file1) <(sort file2)
aaa
ccc

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