projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 0aa1e165 | 1 | .\" @(#)cmp.1 6.1 (Berkeley) %G% |
| 85ae1ebc | 2 | .\" |
| 0aa1e165 | 3 | .TH CMP 1 "" |
| 85ae1ebc KM |
4 | .AT 3 |
| 5 | .SH NAME | |
| 6 | cmp \- compare two files | |
| 7 | .SH SYNOPSIS | |
| 8 | .B cmp | |
| 9 | [ | |
| 10 | .B \-l | |
| 11 | ] [ | |
| 12 | .B \-s | |
| 13 | ] | |
| 14 | file1 file2 | |
| 15 | .SH DESCRIPTION | |
| 16 | The two files are | |
| 17 | compared. | |
| 18 | (If | |
| 19 | .I file1 | |
| 20 | is `\-', | |
| 21 | the standard input is used.) | |
| 22 | Under default options, | |
| 23 | .I cmp | |
| 24 | makes no comment if the files are the same; | |
| 25 | if they differ, it announces the byte and line number | |
| 26 | at which the difference occurred. | |
| 27 | If one file is an initial subsequence | |
| 28 | of the other, that fact is noted. | |
| 29 | .PP | |
| 30 | Options: | |
| 31 | .TP 6 | |
| 32 | .B \-l | |
| 33 | Print the byte number (decimal) and the | |
| 34 | differing bytes (octal) for each difference. | |
| 35 | .TP 6 | |
| 36 | .B \-s | |
| 37 | Print nothing for differing files; | |
| 38 | return codes only. | |
| 39 | .dt | |
| 40 | .SH "SEE ALSO" | |
| 41 | diff(1), comm(1) | |
| 42 | .SH DIAGNOSTICS | |
| 43 | Exit code 0 is returned for identical | |
| 44 | files, 1 for different files, and 2 for an | |
| 45 | inaccessible or missing argument. |