ac(1m) ac: login accounting. adb(1) adb: debugger. ar(1) ar: archive and library maintainer. ar11(1) ar11: PDP-11 compatible archive and library maintainer. arcv(1m) arcv: convert archives to new format. as(1) as: assembler. at(1) at: execute commands at a later time. awk(1) awk: pattern scanning and processing language. basename(1) basename: strip filename affixes. bc(1) bc: arbitrary-precision arithmetic language. cal(1) cal: print calendar. calendar(1) calendar: reminder service. call(1c) call: ring a telephone. cat(1) cat: catenate and print. cb(1) cb: C program beautifier. cc(1) cc: C compiler. cd(1) cd: change working directory. chmod(1) chmod: change mode. chown(1) chown, chgrp: change owner or group. clri(1m) clri: clear i-node. cmp(1) cmp: compare two files. col(1) col: filter reverse line feeds. comm(1) comm: select or reject lines common to two sorted files. cp(1) cp: copy. cron(1m) cron: clock daemon. crypt(1) crypt: encode/decode. cu(1c) cu: call UNIX. date(1) date: print and set the date. dc(1) dc: desk calculator. dcheck(1m) dcheck: file system directory consistency check. dd(1) dd: convert and copy a file. deroff(1) deroff: remove nroff, troff, tbl and eqn constructs. df(1m) df: disk free. diff(1) diff: differential file comparator. diff3(1) diff3: 3-way differential file comparison. du(1) du: summarize disk usage. dump(1m) dump: incremental file system dump. dumpdir(1m) dumpdir: print the names of files on a dump tape. echo(1) echo: echo arguments. ed(1) ed: text editor. eqn(1) eqn, neqn, checkeq: typeset mathematics. expr(1) expr: evaluate arguments as an expression. f77(1) f77: Fortran 77 compiler. file(1) file: determine file type. find(1) find: find files. graph(1g) graph: draw a graph. grep(1) grep, egrep, fgrep: search a file for a pattern. icheck(1m) icheck: file system storage consistency check. intro(1) intro: introduction to commands. iostat(1m) iostat: report I/O statistics. join(1) join: relational database operator. kill(1) kill: terminate a process with extreme prejudice. ld(1) ld: link editor. learn(1) learn: computer aided instruction about UNIX. lex(1) lex: generator of lexical analysis programs. lint(1) lint: a C program verifier. ln(1) ln: make a link. login(1) login: sign on. look(1) look: find lines in a sorted list. lorder(1) lorder: find ordering relation for an object library. lpr(1) lpr, vpr: line printer spooler. ls(1) ls: list contents of directory. m4(1) m4: macro processor. mail(1) mail: send or receive mail among users. make(1) make: maintain program groups. man(1) man: print sections of this manual. mesg(1) mesg: permit or deny messages. mkdir(1) mkdir: make a directory. mkfs(1m) mkfs: construct a file system. mknod(1m) mknod: build special file. mount(1m) mount, umount: mount and dismount file system. mv(1) mv: move or rename files. ncheck(1m) ncheck: generate names from i-numbers. newgrp(1) newgrp: log in to a new group. nice(1) nice, nohup: run a command at low priority. nm(1) nm: print name list. nohup(1) nohup: run a command immune to hangups. number(1) number: convert Arabic numerals to English. od(1) od: octal dump. passwd(1) passwd: change login password. plot(1g) plot: graphics filters. pr(1) pr: print file. prof(1) prof: display profile data. ps(1) ps: process status. pstat(1m) pstat: print system facts. ptx(1) ptx: permuted index. pwd(1) pwd: working directory name. quot(1m) quot: summarize file system ownership. ratfor(1) ratfor: rational Fortran dialect. rc(1) rc: Ratfor compiler. refer(1) refer, lookbib: find and insert literature references in documents. restor(1m) restor: incremental file system restore. rev(1) rev: reverse lines of a file. rm(1) rm, rmdir: remove (unlink) files. sa(1m) sa, accton: system accounting. sdb(1) sdb: C symbolic debugger. sed(1) sed: stream editor. sh(1) sh, for, case, if, while, \fB:\fP, \fB.\fP, break, continue, cd, eval, exec, exit, export, login, newgrp, read, readonly, set, shift, times, trap, umask, wait: command language. size(1) size: size of an object file. sleep(1) sleep: suspend execution for an interval. sort(1) sort: sort or merge files. spell(1) spell, spellin, spellout: find spelling errors. spline(1g) spline: interpolate smooth curve. split(1) split: split a file into pieces. strip(1) strip: remove symbols and relocation bits. struct(1) struct: structure Fortran programs. stty(1) stty: set terminal options. su(1) su: substitute user id temporarily. sum(1) sum: sum and count blocks in a file. sync(1m) sync: update the super block. tabs(1) tabs: set terminal tabs. tail(1) tail: deliver the last part of a file. tar(1) tar: tape archiver. tbl(1) tbl: format tables for nroff or troff. tc(1) tc: photypesetter simulator. tee(1) tee: pipe fitting. test(1) test: condition command. time(1) time: time a command. tk(1) tk: paginator for the Tektronix 4014. touch(1) touch: update date last modified of a file. tp(1) tp: manipulate tape archive. tr(1) tr: translate characters. troff(1) troff, nroff: text formatting and typesetting. true(1) true, false: provide truth values. tsort(1) tsort: topological sort. tty(1) tty: get terminal name. uniq(1) uniq: report repeated lines in a file. units(1) units: conversion program. uucp(1c) uucp, uulog: unix to unix copy. uudiff(1c) uudiff: directory comparison between machines. uulog(1c) uulog: uucp user log inquiry. uux(1c) uux: unix to unix command execution. wait(1) wait: await completion of process. wall(1m) wall: write to all users. wc(1) wc: word count. who(1) who: who is on the system. write(1) write: write to another user. xsend(1) xsend, xget, enroll: secret mail. yacc(1) yacc: yet another compiler-compiler.