| OS | Man Page | Section | Hits |
|---|---|---|---|
| linux | iswalpha | 3 | 539 |
| redhat | iswalpha | 3 | 451 |
| opensolaris | iswalpha | 3c | 441 |
| debian | iswalpha | 3 | 399 |
| centos | iswalpha | 3 | 393 |
| opendarwin | iswalpha | 3 | 382 |
| sunos | iswalpha | 3c | 361 |
| x11r4 | iswalpha | 3 | 360 |
| plan9 | iswalpha | 3 | 348 |
| v7 | iswalpha | 3 | 346 |
| posix | iswalpha | 3p | 345 |
| bsd | iswalpha | 3 | 337 |
| xfree86 | iswalpha | 3 | 336 |
| php | iswalpha | 3 | 330 |
| freebsd | iswalpha | 3 | 323 |
| minix | iswalpha | 3 | 322 |
| suse | iswalpha | 3 | 310 |
| mojave | iswalpha | 3 | 292 |
| centos | iswalpha | 3p | 273 |
| suse | iswalpha | 3p | 258 |
| freebsd | iswalpha_l | 3 | 257 |
| mojave | iswalpha_l | 3 | 249 |
| osx | iswalpha | 3 | 242 |
| osf1 | iswalpha | 3 | 203 |
| hpux | iswalpha | 3c | 198 |
| osx | iswalpha_l | 3 | 172 |
| netbsd | iswalpha | 3 | 157 |