| OS | Man Page | Section | Hits |
|---|---|---|---|
| linux | pipe2 | 2 | 450 |
| posix | pipe2 | 2 | 383 |
| freebsd | pipe2 | 2 | 304 |
| netbsd | pipe2 | 2 | 284 |
| centos | pipe2 | 2 | 273 |
| mojave | pipe2 | 2 | 273 |
| suse | pipe2 | 2 | 271 |
| hpux | pipe2 | 2 | 266 |
| minix | pipe2 | 2 | 241 |
| opendarwin | pipe2 | 2 | 238 |
| php | pipe2 | 2 | 236 |
| xfree86 | pipe2 | 2 | 228 |
| plan9 | pipe2 | 2 | 223 |
| x11r4 | pipe2 | 2 | 220 |
| osf1 | pipe2 | 2 | 185 |
| opensolaris | pipe2 | 2 | 176 |
| debian | pipe2 | 2 | 171 |
| sunos | pipe2 | 2 | 154 |