| OS | Man Page | Section | Hits |
|---|---|---|---|
| opensolaris | towupper | 3 | 547 |
| mojave | towupper | 3 | 506 |
| centos | towupper | 3 | 505 |
| linux | towupper | 3 | 489 |
| v7 | towupper | 3 | 448 |
| minix | towupper | 3 | 448 |
| php | towupper | 3 | 440 |
| bsd | towupper | 3 | 417 |
| osx | towupper | 3 | 415 |
| xfree86 | towupper | 3 | 413 |
| opendarwin | towupper | 3 | 409 |
| x11r4 | towupper | 3 | 407 |
| suse | towupper | 3 | 399 |
| plan9 | towupper | 3 | 391 |
| debian | towupper | 3 | 365 |
| posix | towupper | 3p | 350 |
| mojave | towupper_l | 3 | 328 |
| freebsd | towupper | 3 | 322 |
| osx | towupper_l | 3 | 306 |
| sunos | towupper | 3c | 303 |
| freebsd | towupper_l | 3 | 297 |
| centos | towupper | 3p | 284 |
| redhat | towupper | 3 | 278 |
| suse | towupper | 3p | 276 |
| linux | towupper_l | 3 | 267 |
| osf1 | towupper | 3 | 261 |
| hpux | towupper | 3c | 205 |
| netbsd | towupper | 3 | 173 |