| Similarity | Rank | |
|---|---|---|
| UNIX | 0.923 | 38476 |
| Linux | 0.871 | 4235 |
| FreeBSD | 0.777 | 35609 |
| BSD | 0.761 | 54400 |
| Mac_OS_X | 0.758 | 22025 |
| Perl | 0.754 | 14697 |
| Microsoft_Windows | 0.751 | 41821 |
| linux | 0.749 | 25974 |
| for_Linux | 0.742 | 35584 |
| on_Linux | 0.736 | 33094 |
| Windows | 0.730 | 3136 |
| OS_X | 0.729 | 27444 |
| Tcl | 0.725 | 72824 |
| Mac_OS | 0.722 | 61980 |
| OpenBSD | 0.710 | 85404 |
| Windows_operate_system | 0.705 | 79105 |
| shell_script | 0.705 | 87493 |
| Fortran | 0.705 | 67720 |
| C_++ | 0.700 | 15848 |
| Solaris | 0.700 | 34897 |
| OSX | 0.699 | 56486 |
| Debian | 0.698 | 20729 |
| operate_system | 0.698 | 5517 |
| Emacs | 0.696 | 73934 |
| the_Linux_kernel | 0.681 | 69019 |