| OS | Man Page | Section | Hits |
|---|---|---|---|
| linux | isatty | 3 | 277 |
| opensolaris | isatty | 3c | 255 |
| osf1 | atty | 7 | 243 |
| v7 | isatty | 3 | 232 |
| opendarwin | isatty | 3 | 232 |
| redhat | isatty | 3 | 224 |
| sunos | isatty | 3c | 223 |
| posix | isatty | 3p | 222 |
| php | isatty | 3 | 200 |
| centos | isatty | 3p | 198 |
| xfree86 | isatty | 3 | 195 |
| plan9 | isatty | 3 | 192 |
| x11r4 | isatty | 3 | 191 |
| osx | isatty | 3 | 181 |
| debian | isatty | 3 | 180 |
| suse | isatty | 3p | 178 |
| redhat | qimageformattype | 3qt | 176 |
| mojave | isatty | 3 | 175 |
| centos | isatty | 3 | 175 |
| freebsd | isatty | 3 | 175 |
| posix | isatty | 3posix | 172 |
| osf1 | isatty | 3 | 164 |
| netbsd | isatty | 3 | 160 |
| suse | isatty | 3 | 160 |
| minix | isatty | 3 | 154 |
| hpux | isatty | 3c | 137 |
| bsd | isatty | 3f | 135 |
| centos | qimageformattype | 3qt | 119 |
| ultrix | isatty | 3 | 116 |
| php | posix_isatty | 3 | 69 |