| bdf(1M) | report number of free disk blocks (Berkeley version) |
| bdiff(1) | diff for large files |
| cal(1) | print calendar |
| calendar | return the MPE calendar date |
| calendar(1) | reminder service |
| cat(1) | concatenate, copy, and print files |
| cb(1) | C program beautifier, formatter |
| cc, c89(1) | C compiler |
| cd(1) | change working directory |
| cflow | generate C flow graph |
| chdir, chdir(2) | change working directory |
| chmod(1) | change file mode |
| chown, chgrp(1) | change file owner or group |
| chsh | change default login shell |
| cmp(1) | compare two files |
| compress, uncompress, zcat | compress and expand data |
| core | format of core image file |
| cp | copy files and directory subtrees |
| cpio | copy file archives in and out |
| cpp | the C language preprocessor |
| csh | a shell (command interpreter) with C-like syntax |
| cut | cut out (extract) selected fields of each line of a file |
| date | print or set the date and time |
| df | report number of free disk blocks |
| diff | differential file and directory comparator |
| dos2ux, ux2dos | convert ASCII file format |
| doschmod | change attributes of a DOS file |
| doscp | copy to or from DOS files |
| dosdf | report number of free disk clusters |
| dosls, dosll | list contents of DOS directories |
| dosmkdir | make a DOS directory |
| ftp | file transfer program |
| grep, egrep, fgrep | search a file for a pattern |
| head | give first few lines |
| help | ask for help |
| id | print user and group IDs and names |
| kermit | kermit file transfer |
| kill | terminate a process |
| ksh, rksh | shell, the standard/restricted command programming language |
| lp, cancel, lpalt | send/cancel/alter requests to an LP line printer or plotter |
| ls, l, ll, lsf, lsr, lsx(1) | list contents of directories |
| mail, rmail | send mail to users or read mail |
| make(1) | maintain, update, and regenerate groups of programs |
| man | find manual information by keywords; print out a manual entry |
| mkdir | make a directory |
| passwd | change login password |
| pg | file perusal filter for soft-copy terminals |
| rlogin | remote login |
| rm | remove files or directories |
| rmdir | remove directories |
| script | make typescript of terminal session |
| sh | overview of various system shells |
| shells | list of allowed login shells |
| sort | sort or merge files |
| spell | find spelling errors |
| vi | screen-oriented (visual) display editor |
| wait | await process completion |
| wc | word, line, and character count |
| who | who is on the system |
| whoami | print effective current user id |
| whodo | which users are doing what |
| write | interactively write (talk) to another user |
| yppasswd | change login password in Network Information System |