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- .Dd 2015-10-08
- .Dt COMM 1
- .Os sbase
- .Sh NAME
- .Nm comm
- .Nd select or reject lines common to two files
- .Sh SYNOPSIS
- .Nm
- .Op Fl 123
- .Ar file1
- .Ar file2
- .Sh DESCRIPTION
- .Nm
- reads
- .Ar file1
- and
- .Ar file2,
- which should both be sorted lexically, and writes three text columns
- to stdout:
- .Bl -tag -width Ds
- .It 1
- Lines only in
- .Ar file1 .
- .It 2
- Lines only in
- .Ar file2 .
- .It 3
- Common lines.
- .El
- .Sh OPTIONS
- .Bl -tag -width Ds
- .It Fl 1 | Fl 2 | Fl 3
- Suppress column 1 | 2 | 3
- .El
- .Sh SEE ALSO
- .Xr cmp 1 ,
- .Xr sort 1 ,
- .Xr uniq 1
- .Sh STANDARDS
- The
- .Nm
- utility is compliant with the
- .St -p1003.1-2013
- specification.
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