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May 19, 2015 - A Look At The New Commandlinefu
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Save lines unique to file2

Terminal - Save lines unique to file2
comm -13 <(sort file1) <(sort file2) > file-new
2011-10-01 18:07:54
User: daa
Functions: comm sort
-2
Save lines unique to file2

If both file1 and file2 are already sorted:

comm -13 file1 file2 > file-new

Alternatives

There are 27 alternatives - vote for the best!

Terminal - Alternatives
grep -Fvf file1 file2 > file-new
2011-09-29 06:37:13
User: wibbel4
Functions: grep
Tags: grep textfile
2

This command compares file2 with file1 and removes the lines that are in file1 from file2. Handy if you have a file where file1 was the origional and you want to remove the origional data from your file2.

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