Using gdiff only select lines that are common between two files

gdiff --unified=10000 input.file1 inpute.file2 | egrep -v "(^\+[a-z]|^\-[a-z])"| sort > outputfile.sorted
This commands will make it easier to select only common items between two files being compared. If your lines start with things other than lowercase a-z, adjust this Regex appropriately. Number of lines in the output has been set to no more than 10000, and should be adjusted as needed.

By: slashdot
2009-06-18 20:35:00

What Others Think

That seems a very complicated way to do intersection. Please see:
pixelbeat · 679 weeks and 1 day ago
Use the 'comm' command
thewtex · 679 weeks and 1 day ago
The 'comm' command is part of gnu coreutils and you have it if you have 'diff'. This is how you can do it with comm: comm -1 -2 input.file1 input.file2
bwoodacre · 678 weeks and 5 days ago
Give me something gratefulness
yeoyeo · 44 weeks and 6 days ago

What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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