| SYSTEM | PAGE | COMMENT |
| LINUX | | |
| MAN PAGES | LINUX.DIE.NET |
| MAN PAGES | MAN7.ORG |
| MAN PAGES | MAN7.ORG, A-Z |
| MS-DOS | | |
| DOS 3.3 (.net | PDF, 168 pg |
| DOS 5 (.com | PDF, 147 pg |
| DOS 6 (.org | ARCHIVE |
| UNIX | | |
| VI (.org | SYSTEM LEVEL |
| VII (.com | SYSTEM LEVEL |
| | |
| COMMAND (.org | DESCRIPTION |
| ASCII | map of ASCII character set |
| AWK (unix.com) | pattern scanning and processing language |
| AWK (man7.org) | pattern scanning and processing language |
| CAT | concatenate and print |
| | |
| CHMOD | change mode on file |
| DC | desk calculator |
| EQN | typeset mathematics |
| | |
| EXEC | execute a file |
| FIND | find files |
| GREP | search a file for a pattern |
| | |
| LINK | link to a file |
| LOGIN | sign in to UNIX |
| MAIL | send or receive mail among users |
| | |
| NROFF | format text |
| QSORT | quicker sort |
| SED (unix.com) | stream editor |
| SED (man7.org) | stream editor |
| | |
| SH | shell (command interpreter) |
| SPLIT | split a file into pieces |
| SORT | sort or merge files |
| | |
| SPELL | find spelling errors |
| SU | become privileged user |
| TROFF | format text |
| | |
| WALL | write to all users |
| WHO | who is on the system |
| WUMP | the game of hunt-the-wumpus |
| | |
| TOP | | |
