Name
comm — stdin stdout - file -- opt --help --version
Synopsis
comm [options
]file1 file2
The comm
command compares two
sorted files and produces three columns of output, separated by
tabs:
All lines that appear in file1 but not in file2.
All lines that appear in file2 but not in file1.
All lines that appear in both files.
For example, if file1 and file2 contain these lines:
file1: file2:
apple baker
baker charlie
charlie dark
then comm
produces this
three-column output:
➜ comm file1 file2
apple
baker
charlie
dark
Useful options
| Suppress column 1. |
| Suppress column 2. |
| Suppress column 3. |
| Case-insensitive operation. |
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