comm.1 (605B)
1 .Dd 2015-10-08 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 The 41 .Nm 42 utility is compliant with the 43 .St -p1003.1-2013 44 specification.