| OS | Man Page | Section | Hits |
|---|---|---|---|
| linux | iswalpha | 3 | 694 |
| redhat | iswalpha | 3 | 577 |
| opensolaris | iswalpha | 3c | 544 |
| debian | iswalpha | 3 | 514 |
| opendarwin | iswalpha | 3 | 477 |
| centos | iswalpha | 3 | 471 |
| posix | iswalpha | 3p | 447 |
| x11r4 | iswalpha | 3 | 445 |
| freebsd | iswalpha | 3 | 437 |
| plan9 | iswalpha | 3 | 434 |
| v7 | iswalpha | 3 | 433 |
| sunos | iswalpha | 3c | 433 |
| minix | iswalpha | 3 | 427 |
| bsd | iswalpha | 3 | 418 |
| xfree86 | iswalpha | 3 | 416 |
| php | iswalpha | 3 | 410 |
| suse | iswalpha | 3 | 399 |
| mojave | iswalpha | 3 | 375 |
| centos | iswalpha | 3p | 331 |
| freebsd | iswalpha_l | 3 | 323 |
| mojave | iswalpha_l | 3 | 315 |
| osx | iswalpha | 3 | 313 |
| suse | iswalpha | 3p | 312 |
| osf1 | iswalpha | 3 | 251 |
| hpux | iswalpha | 3c | 250 |
| osx | iswalpha_l | 3 | 215 |
| netbsd | iswalpha | 3 | 199 |