| 1 | .TH CMP 1 |
| 2 | .SH NAME |
| 3 | cmp \- compare two files |
| 4 | .SH SYNOPSIS |
| 5 | .B cmp |
| 6 | [ |
| 7 | .B \-l |
| 8 | ] [ |
| 9 | .B \-s |
| 10 | ] |
| 11 | file1 file2 |
| 12 | .SH DESCRIPTION |
| 13 | The two files are |
| 14 | compared. |
| 15 | (If |
| 16 | .I file1 |
| 17 | is `\-', |
| 18 | the standard input is used.) |
| 19 | Under default options, |
| 20 | .I cmp |
| 21 | makes no comment if the files are the same; |
| 22 | if they differ, it announces the byte and line number |
| 23 | at which the difference occurred. |
| 24 | If one file is an initial subsequence |
| 25 | of the other, that fact is noted. |
| 26 | .PP |
| 27 | Options: |
| 28 | .TP 6 |
| 29 | .B \-l |
| 30 | Print the byte number (decimal) and the |
| 31 | differing bytes (octal) for each difference. |
| 32 | .TP 6 |
| 33 | .B \-s |
| 34 | Print nothing for differing files; |
| 35 | return codes only. |
| 36 | .dt |
| 37 | .SH "SEE ALSO" |
| 38 | diff(1), comm(1) |
| 39 | .SH DIAGNOSTICS |
| 40 | Exit code 0 is returned for identical |
| 41 | files, 1 for different files, and 2 for an |
| 42 | inaccessible or missing argument. |