comm.1 (554B)
1 .Dd October 8, 2015 2 .Dt COMM 1 3 .Os sbase 4 .Sh NAME 5 .Nm comm 6 .Nd select or reject lines common to two files 7 .Sh SYNOPSIS 8 .Nm 9 .Op Fl 123 10 .Ar file1 11 .Ar file2 12 .Sh DESCRIPTION 13 .Nm 14 reads 15 .Ar file1 16 and 17 .Ar file2 , 18 which should both be sorted lexically, and writes three text columns 19 to stdout: 20 .Bl -tag -width Ds 21 .It 1 22 Lines only in 23 .Ar file1 . 24 .It 2 25 Lines only in 26 .Ar file2 . 27 .It 3 28 Common lines. 29 .El 30 .Sh OPTIONS 31 .Bl -tag -width Ds 32 .It Fl 1 | Fl 2 | Fl 3 33 Suppress column 1 | 2 | 3 34 .El 35 .Sh SEE ALSO 36 .Xr cmp 1 , 37 .Xr sort 1 , 38 .Xr uniq 1 39 .Sh STANDARDS 40 POSIX.1-2013.