4.2BSD/usr/lib/whatis
_exit (2) - terminate a process
a.out (5) - assembler and link editor output
aardvark (6) - yet another exploration game
abort (3) - generate a fault
abort (3F) - terminate abruptly with memory image
abs (3) - integer absolute value
ac (8) - login accounting
acc (4V) - ACC LH/DH IMP interface
accept (2) - accept a connection on a socket
access (2) - determine accessibility of file
access (3F) - determine accessibility of a file
acct (2) - turn accounting on or off
acct (5) - execution accounting file
ad (4V) - Data Translation A/D converter
adb (1) - debugger
adduser (8) - procedure for adding new users
adventure (6) - an exploration game
alarm (3) - schedule signal after specified time
alarm (3F) - execute a subroutine after a specified time
aliases (5) - aliases file for sendmail
aliens (6) - The alien invaders attack the earth
analyze (8) - Virtual UNIX postmortem crash analyzer
apply (1) - apply a command to a set of arguments
apropos (1) - locate commands by keyword lookup
ar (1) - archive and library maintainer
ar (5) - archive (library) file format
arcv (8) - convert archives to new format
arff, flcopy (8V) - archiver and copier for floppy
arithmetic (6) - provide drill in number facts
as (1) - assembler
ascii (7) - map of ASCII character set
assert (3X) - program verification
at (1) - execute commands at a later time
atof, atoi, atol (3) - convert ASCII to numbers
autoconf (4V) - diagnostics from the autoconfiguration code
awk (1) - pattern scanning and processing language
backgammon (6) - the game
bad144 (8) - read/write dec standard 144 bad sector information
badsect (8) - create files to contain bad sectors
banner (6) - print large banner on printer
basename (1) - strip filename affixes
bc (1) - arbitrary-precision arithmetic language
bcd (6) - convert to antique media
bcopy, bcmp, bzero (3) - byte string operations
bessel functions (3F) - of two kinds for integer orders
biff (1) - be notified if mail arrives and who it is from
bind (2) - bind a name to a socket
binmail (1) - send or receive mail among users
bis, bic, setbit, bit, and, or, xor, not, rshift, lshift (3F) - bit manipulation routines
bk (4) - line discipline for machine-machine communication
boggle (6) - play the game of boggle
brk, sbrk (2) - change data segment size
cal (1) - print calendar
calendar (1) - reminder service
canfield (6) - the solitaire card game canfield
cat (1) - catenate and print
catman (8) - create the cat files for the manual
cb (1) - C program beautifier
cc (1) - C compiler
cd (1) - change working directory
chase (6) - Try to escape to killer robots
chdir (2) - change current working directory
chdir (3F) - change default directory
checknr (1) - check nroff/troff files
chess (6) - the game of chess
chfn (1) - change full name of user
chgrp (1) - change group
ching, fortune (6) - the book of changes and other cookies
chmod (1) - change mode
chmod (2) - change mode of file
chown (2) - change owner and group of a file
chown (8) - change owner
chroot (2) - change root directory
chsh (1) - change default login shell
clear (1) - clear terminal screen
close (2) - delete a descriptor
clri (8) - clear i-node
cmp (1) - compare two files
col (1) - filter reverse line feeds
colcrt (1) - filter nroff output for CRT previewing
colrm (1) - remove columns from a file
comm (1) - select or reject lines common to two sorted files
compact, uncompact, ccat (1) - compress and uncompress files, and cat them
comsat (8C) - biff server
config (8) - build system configuration files
connect (2) - initiate a connection on a socket
cons (4V) - console interface
core (5) - format of memory image file
cp (1) - copy
crash (8V) - what happens when the system crashes
creat (3) - create a new file
cribbage (6) - the card game cribbage
cron (8) - clock daemon
crypt (1) - encode/decode
crypt, setkey, encrypt (3) - DES encryption
csh (1) - a shell (command interpreter) with C-like syntax
css (4V) - DEC IMP-11A LH/DH IMP interface
ct (4V) - phototypesetter interface
ctags (1) - create a tags file
ctime, localtime, gmtime, asctime, timezone (3) - convert date and time to ASCII
curses (3X) - screen functions with ``optimal'' cursor motion
date (1) - print and set the date
dbminit, fetch, store, delete, firstkey, nextkey (3X) - data base subroutines
dbx (1) - debugger
dc (1) - desk calculator
dcheck (8) - file system directory consistency check
dd (1) - convert and copy a file
deroff (1) - remove nroff, troff, tbl and eqn constructs
df (1) - disk free
dh (4V) - DH-11/DM-11 communications multiplexer
diction,explain (1) - print wordy sentences; thesaurus for diction
diff (1) - differential file and directory comparator
diff3 (1) - 3-way differential file comparison
dir (5) - format of directories
diskpart (8) - calculate default disk partition sizes
disktab (5) - disk description file
dmc (4V) - DEC DMC-11/DMR-11 point-to-point communications device
dmesg (8) - collect system diagnostic messages to form error log
dmf (4V) - DMF-32, terminal multiplexor
dn (4V) - DN-11 autocall unit interface
doctor (6) - interact with a psychoanalyst
drum (4) - paging device
du (1) - summarize disk usage
dump (8) - incremental file system dump
dump, dumpdates (5) - incremental dump format
dumpfs (8) - dump file system information
dup, dup2 (2) - duplicate a descriptor
dz (4V) - DZ-11 communications multiplexer
ec (4V) - 3Com 10 Mb/s Ethernet interface
echo (1) - echo arguments
ecvt, fcvt, gcvt (3) - output conversion
ed (1) - text editor
efl (1) - Extended Fortran Language
en (4V) - Xerox 3 Mb/s Ethernet interface
end, etext, edata (3) - last locations in program
environ (7) - user environment
eqn, neqn, checkeq (1) - typeset mathematics
eqnchar (7) - special character definitions for eqn
error (1) - analyze and disperse compiler error messages
etime, dtime (3F) - return elapsed execution time
ex, edit (1) - text editor
execl, execv, execle, execlp, execvp, exec, exece, environ (3) - execute a file
execve (2) - execute a file
exit (3) - terminate a process after flushing any pending output
exit (3F) - terminate process with status
exp, log, log10, pow, sqrt (3M) - exponential, logarithm, power, square root
expand, unexpand (1) - expand tabs to spaces, and vice versa
explain, diction(1) - print wordy sentences; thesaurus for diction
expr (1) - evaluate arguments as an expression
eyacc (1) - modified yacc allowing much improved error recovery
f77 (1) - Fortran 77 compiler
fabs, floor, ceil (3M) - absolute value, floor, ceiling functions
false, true (1) - provide truth values
fastboot (8) - reboot the system without checking the disks
fclose, fflush (3S) - close or flush a stream
fdate (3F) - return date and time in an ASCII string
fed (1) - font editor
ferror, feof, clearerr, fileno (3S) - stream status inquiries
file (1) - determine file type
find (1) - find files
finger (1) - user information lookup program
fish (6) - play ``Go Fish''
fl (4V) - floppy interface
flmin, flmax, dflmin, dflmax, inmax (3F) - return extreme values
flock (2) - apply or remove an advisory lock on an open file
flush (3F) - flush output to a logical unit
fmt (1) - simple text formatter
fold (1) - fold long lines for finite width output device
fork (2) - create a new process
fork (3F) - create a copy of this process
format (8V) - how to format disk packs
fortune (6) - print a random, hopefully interesting, adage
fp (1) - Functional Programming language compiler/interpreter
fread, fwrite (3S) - buffered binary input/output
frexp, ldexp, modf (3) - split into mantissa and exponent
from (1) - who is my mail from?
fs, inode (5) - format of file system volume
fsck (8) - file system consistency check and interactive repair
fseek, ftell (3F) - reposition a file on a logical unit
fseek, ftell, rewind (3S) - reposition a stream
fstab (5) - static information about the filesystems
fsync (2) - synchronize a file's in-core state with that on disk
ftp (1C) - file transfer program
ftpd (8C) - DARPA Internet File Transfer Protocol server
gamma (3M) - log gamma function
gcore (1) - get core images of running processes
getarg, iargc (3F) - command arguments to Fortran
getc, fgetc (3F) - get a character from a logical unit
getc, getchar, fgetc, getw (3S) - get character or word from stream
getdiskbyname (3X) - get disk description by its name
getdopt, setdopt (2) - get/set options associated with a descriptor
getdtablesize (2) - get descriptor table size
getenv (3) - value for environment name
getenv (3F) - get value of environment variables
getfsent, getfsspec, getfsfile, setfsent, endfsent (3) - get file system descriptor file entry
getgid, getegid (2) - get group identity
getgrent, getgrgid, getgrnam, setgrent, endgrent (3) - get group file entry
getgroups (2) - get group access list
gethostent, gethostbyaddr, gethostbyname, sethostent, endhostent (3N) - get network host entry
gethostid, sethostid (2) - get/set unique identifier of current host
gethostname, sethostname (2) - get/set name of current host
getitimer, setitimer (2) - get/set value of interval timer
getlog (3F) - get user's login name
getlogin (3) - get login name
getnetent, getnetbyaddr, getnetbyname, setnetent, endnetent (3N) - get network entry
getpagesize (2) - get system page size
getpass (3) - read a password
getpgrp (2) - get process group
getpid (3F) - get process id
getpid, getppid (2) - get process identification
getpriority, setpriority (2) - get/set program scheduling priority
getprotoent, getprotobynumber, getprotobyname, setprotoent, endprotoent (3N) - get protocol entry
getpw (3) - get name from uid
getpwent, getpwuid, getpwnam, setpwent, endpwent (3) - get password file entry
getrlimit, setrlimit (2) - control maximum system resource consumption
getrusage (2) - get information about resource utilization
gets, fgets (3S) - get a string from a stream
getservent, getservbyport, getservbyname, setservent, endservent (3N) - get service entry
getsockname (2) - get socket name
getsockopt, setsockopt (2) - get and set options on sockets
gettable (8C) - get NIC format host tables from a host
gettimeofday, settimeofday (2) - get/set date and time
getty (8) - set terminal mode
getuid, geteuid (2) - get user identity
getuid, getgid (3F) - get user or group ID of the caller
getwd (3) - get current working directory pathname
gprof (1) - display call graph profile data
graph (1G) - draw a graph
grep, egrep, fgrep (1) - search a file for a pattern
group (5) - group file
groups (1) - show group memberships
halt (8) - stop the processor
hangman (6) - Computer version of the game hangman
head (1) - give first few lines
hier (7) - file system hierarchy
hk (4V) - RK6-11/RK06 and RK07 moving head disk
hostid (1) - set or print identifier of current host system
hostname (1) - set or print name of current host system
hosts (5) - host name data base
hp (4V) - MASSBUS disk interface
ht (4V) - TM-03/TE-16,TU-45,TU-77 MASSBUS magtape interface
htable (8) - convert NIC standard format host tables
htonl, htons, ntohl, ntohs (3N) - convert values between host and network byte order
hy (4V) - Network Systems Hyperchannel interface
hypot, cabs (3M) - Euclidean distance
icheck (8) - file system storage consistency check
idate, itime (3F) - return date or time in numerical form
ik (4V) - Ikonas frame buffer, graphics device interface
il (4V) - Interlan 10 Mb/s Ethernet interface
imp (4P) - IMP raw socket interface
imp (4V) - 1822 network interface
implog (8C) - IMP log interpreter
implogd (8C) - IMP logger process
indent (1) - indent and format C program source
index, rindex, lnblnk, len (3F) - tell about character objects
inet (4F) - Internet protocol family
inet_addr, inet_network, inet_makeaddr, inet_lnaof, inet_netof (3N) - Internet address manipulation routines
init (8) - process control initialization
initgroups (3) - initialize group access list
install (1) - install binaries
intro (1) - introduction to commands
intro (2) - introduction to system calls and error numbers
intro (3) - introduction to library functions
intro (3F) - introduction to FORTRAN library functions
intro (3J) - summary of job control facilities
intro (3M) - introduction to mathematical library functions
intro (3N) - introduction to network library functions
intro (3X) - introduction to miscellaneous library functions
intro (4) - introduction to special files and hardware support
intro (4V) - introduction to VAX devices
intro (8) - introduction to system maintenance and operation commands
ioctl (2) - control device
iostat (1) - report I/O statistics
ip (4P) - Internet Protocol
isalpha, isupper, islower, isdigit, isalnum, isspace, ispunct, isprint, iscntrl, isascii (3) - character classification macros
j0, j1, jn, y0, y1, yn (3M) - bessel functions
join (1) - relational database operator
kgmon (8) - generate a dump of the operating systems profile buffers
kill (1) - terminate a process with extreme prejudice
kill (2) - send signal to a process
kill (3F) - send a signal to a process
killpg (2) - send signal to a process group
last (1) - indicate last logins of users and teletypes
lastcomm (1) - show last commands executed in reverse order
ld (1) - link editor
learn (1) - computer aided instruction about UNIX
leave (1) - remind you when you have to leave
lex (1) - generator of lexical analysis programs
lib2648 (3X) - subroutines for the HP 2648 graphics terminal
link (2) - make a hard link to a file
link (3F) - make a link to an existing file
lint (1) - a C program verifier
lisp (1) - lisp interpreter
listen (2) - listen for connections on a socket
liszt (1) - compile a Franz Lisp program
ln (1) - make links
lo (4) - software loopback network interface
loc (3F) - return the address of an object
lock (1) - reserve a terminal
login (1) - sign on
look (1) - find lines in a sorted list
lookbib (1) - find literature references in documents
lorder (1) - find ordering relation for an object library
lp (4V) - line printer
lpd, lpdrestart (8) - line printer daemon, restart downed daemons at reboot time
lpq (1) - spool queue examination program
lpr (1) - off line print
lprm (1) - remove jobs from the line printer spooling queue
ls (1) - list contents of directory
lseek (2) - move read/write pointer
lxref (1) - lisp cross reference program
m4 (1) - macro processor
madvise (2) - give advice to the paging system
mail (1) - send and receive mail
mailaddr (7) - mail addressing description
make (1) - maintain program groups
makedev (8) - make system special files
makekey (8) - generate encryption key
malloc, free, realloc, calloc (3) - main memory allocator
man (1) - find manual information by keywords; print out the manual
man (7) - macros to typeset manual
me (7) - macros for formatting papers
mem, kmem (4) - main memory
mesg (1) - permit or deny messages
mille (6) - play Mille Bournes
mincore (2) - find out about core resident pages
miscellaneous (7) - miscellaneous useful information pages
mkdir (1) - make a directory
mkdir (2) - make a directory file
mkfs (8) - construct a file system
mklost+found (8) - make a lost+found directory for fsck
mknod (2) - make a special file
mknod (8) - build special file
mkproto (8) - construct a prototype file system
mkstr (1) - create an error message file by massaging C source
mktemp (3) - make a unique file name
mmap (2) - map pages of memory
monitor, monstartup, moncontrol (3) - prepare execution profile
monop (6) - Monopoly game
more, page (1) - file perusal filter for crt viewing
mount, umount (8) - mount and dismount file system
mount, unmount (2) - mount or remove file system
mprotect (2) - change memory protection
mremap (2) - remap pages of memory
ms (7) - macros for formatting manuscripts
msgs (1) - system messages and junk mail program
mt (1) - magnetic tape manipulating program
mt (4) - UNIX magtape interface
mt (4V) - TM78/TU-78 MASSBUS magtape interface
mtab (5) - mounted file system table
munmap (2) - unmap pages of memory
mv (1) - move or rename files
ncheck (8) - generate names from i-numbers
netstat (1) - show network status
networking (4N) - introduction to networking facilities
networks (5) - network name data base
newaliases (1) - rebuild the data base for the mail aliases file
newfs (8) - construct a new file system
nice (3) - set program priority
nice, nohup (1) - run a command at low priority (\fIsh\fR only)
nlist (3) - get entries from name list
nm (1) - print name list
nroff, troff (1) - text formatting and typesetting
null (4) - data sink
num (1) - number lines
number (6) - convert Arabic numerals to English
od (1) - octal dump
open (2) - open a file for reading or writing, or create a new file
opendir, readdir, telldir, seekdir, rewinddir, closedir (3) - directory operations
pac (8) - printer/ploter accounting information
pagesize (1) - print system page size
passwd (1) - change login password
passwd (5) - password file
pause (2) - stop until signal
pc (1) - Pascal compiler
pcl (4V) - DEC CSS PCL-11 B Network Interface
pdx (1) - pascal debugger
perror, gerror, ierrno (3F) - get system error messages
perror, sys_errlist, sys_nerr (3) - system error messages
phones (5) - remote host phone number data base
pi (1) - Pascal interpreter code translator
pipe (2) - create an interprocess communication channel
pix (1) - Pascal interpreter and executor
plot (1G) - graphics filters
plot (5) - graphics interface
plot: openpl, erase, label, line, circle, arc, move, cont, point, linemod, space, closepl (3X) - graphics interface
pmerge (1) - pascal file merger
popen, pclose (3S) - initiate I/O to/from a process
pr (1) - print file
print (1) - pr to the line printer
printcap (5) - printer capability data base
printenv (1) - print out the environment
printf, fprintf, sprintf (3S) - formatted output conversion
prmail (1) - print out mail in the post office
prof (1) - display profile data
profil (2) - execution time profile
protocols (5) - protocol name data base
ps (1) - process status
ps (4V) - Evans and Sutherland Picture System 2 graphics device interface
psignal, sys_siglist (3) - system signal messages
pstat (8) - print system facts
pti (1) - phototypesetter interpreter
ptrace (2) - process trace
ptx (1) - permuted index
pty (4) - pseudo terminal driver
pup (4F) - Xerox PUP-I protocol family
pup (4P) - raw PUP socket interface
putc, fputc (3F) - write a character to a fortran logical unit
putc, putchar, fputc, putw (3S) - put character or word on a stream
puts, fputs (3S) - put a string on a stream
pwd (1) - working directory name
px (1) - Pascal interpreter
pxp (1) - Pascal execution profiler
pxref (1) - Pascal cross-reference program
qsort (3) - quicker sort
qsort (3F) - quick sort
quiz (6) - test your knowledge
quot (8) - summarize file system ownership
rain (6) - animated raindrops display
rand, drand, irand (3F) - return random values
rand, srand (3) - random number generator
random, srandom, initstate, setstate (3) - better random number generator; routines for changing generators
ranlib (1) - convert archives to random libraries
ratfor (1) - rational Fortran dialect
rc (8) - command script for auto-reboot and daemons
rcmd, rresvport, ruserok (3X) - routines for returning a stream to a remote command
rcp (1C) - remote file copy
rdump (8C) - file system dump across the network
re_comp, re_exec (3) - regular expression handler
read, readv (2) - read input
readlink (2) - read value of a symbolic link
reboot (2) - reboot system or halt processor
reboot (8) - UNIX bootstrapping procedures
recv, recvfrom, recvmsg (2) - receive a message from a socket
refer (1) - find and insert literature references in documents
remote (5) - remote host description file
rename (2) - change the name of a file
renice (8) - alter priority of running processes
reset (1) - reset the teletype bits to a sensible state
restor (8) - incremental file system restore
rev (1) - reverse lines of a file
rexec (3X) - return stream to a remote command
rexecd (8C) - remote execution server
rlogin (1C) - remote login
rlogind (8C) - remote login server
rm, rmdir (1) - remove (unlink) files or directories
rmail (1) - handle remote mail received via uucp
rmdir (2) - remove a directory file
rmdir, rm (1) - remove (unlink) directories or files
rmt (8C) - remote magtape protocol module
rogue (6) - Exploring The Dungeons of Doom
route (8C) - manually manipulate the routing tables
routed (8C) - network routing daemon
rrestor (8C) - restore a file system dump across the network
rsh (1C) - remote shell
rshd (8C) - remote shell server
ruptime (1C) - show host status of local machines
rwho (1C) - who's logged in on local machines
rwhod (8C) - system status server
rx (4V) - DEC RX02 floppy disk interface
sa, accton (8) - system accounting
savecore (8) - save a core dump of the operating system
scandir (3) - scan a directory
scanf, fscanf, sscanf (3S) - formatted input conversion
script (1) - make typescript of terminal session
sed (1) - stream editor
see (1) - see what a file has in it
select (2) - synchronous i/o multiplexing
send, sendto, sendmsg (2) - send a message from a socket
sendmail (8) - send mail over the internet
services (5) - service name data base
setbuf, setbuffer, setlinebuf (3S) - assign buffering to a stream
setgroups (2) - set group access list
setjmp, longjmp (3) - non-local goto
setpgrp (2) - set process group
setregid (2) - set real and effective group ID
setreuid (2) - set real and effective user ID's
setuid, setgid (3) - set user and group ID
sh, for, case, if, while, \fB:\fP, \fB.\fP, break, continue, cd, eval, exec, exit, export, login, read, readonly, set, shift, times, trap, umask, wait (1) - command language
shutdown (2) - shut down part of a full-duplex connection
shutdown (8) - close down the system at a given time
signal (2) - catch or ignore signals
signal (3F) - change the action for a signal
sigset, signal, sighold, sigignore, sigrelse, sigpause (3J) - manage signals
sigsys (2) - catch or ignore signals
sin, cos, tan, asin, acos, atan, atan2 (3M) - trigonometric functions
sinh, cosh, tanh (3M) - hyperbolic functions
size (1) - size of an object file
sleep (1) - suspend execution for an interval
sleep (3) - suspend execution for interval
sleep (3F) - sleep for awhile
snake, snscore (6) - display chase game
socket (2) - create an endpoint for communication
socketpair (2) - create a pair of connected sockets
soelim (1) - eliminate \&.so's from nroff input
sort (1) - sort or merge files
spell, spellin, spellout (1) - find spelling errors
spline (1G) - interpolate smooth curve
split (1) - split a file into pieces
stab (5) - symbol table types
stat, fstat (3F) - get file status
stat, lstat, fstat (2) - get file status
stdio (3S) - standard buffered input/output package
sticky (8) - executable files with persistent text
stk, sstk (2) - change stack segment size
strcat, strncat, strcmp, strncmp, strcpy, strncpy, strlen, index, rindex (3) - string operations
strings (1) - find the printable strings in a object, or other binary, file
strip (1) - remove symbols and relocation bits
struct (1) - structure Fortran programs
stty (1) - set terminal options
stty, gtty (3) - set and get terminal state (defunct)
style (1) - analyze surface characteristics of a document
su (1) - substitute user id temporarily
sum (1) - sum and count blocks in a file
swab (3) - swap bytes
swapon (8) - specify additional device for paging and swapping
swapon, swapoff (2) - add/delete a swap device for interleaved paging/swapping
symlink (2) - make symbolic link to a file
symorder (1) - rearrange name list
sync (2) - update super-block
sync (8) - update the super block
syscall (2) - indirect system call
sysline (1) - display system status on status line of a terminal
syslog (8) - log systems messages
syslog, openlog, closelog (3) - control system log
system (3) - issue a shell command
system (3F) - execute a unix command
tabs (1) - set terminal tabs
tail (1) - deliver the last part of a file
tar (1) - tape archiver
tar (5) - tape archive file format
tbl (1) - format tables for nroff or troff
tc (1) - photoypesetter simulator
tcp (4P) - Internet Transmission Control Protocol
tee (1) - pipe fitting
telnet (1C) - user interface to the TELNET protocol
telnetd (8C) - DARPA TELNET protocol server
term (7) - conventional names for terminals
termcap (5) - terminal capability data base
test (1) - condition command
tftpd (8C) - DARPA Trivial File Transfer Protocol server
tgetent, tgetnum, tgetflag, tgetstr, tgoto, tputs (3X) - terminal independent operation routines
time (1) - time a command
time, ctime, ltime, gmtime (3F) - return system time
time, ftime (3) - get date and time
times (3) - get process times
tip (1C) - connect to a remote system
tk (1) - paginator for the Tektronix 4014
tm (4V) - TM-11/TE-10 magtape interface
touch (1) - update date last modified of a file
tp (1) - manipulate tape archive
tp (5) - DEC/mag tape formats
tr (1) - translate characters
traper (3F) - trap arithmetic errors
trapov (3F) - trap and repair floating point overflow
trek (6) - trekkie game
trman (1) - translate version 6 manual macros to version 7 macros
troff, nroff (1) - text formatting and typesetting
trpt (8C) - transliterate protocol trace
true, false (1) - provide truth values
truncate (2) - truncate a file to a specified length
ts (4V) - TS-11 magtape interface
tset (1) - terminal dependent initialization
tsort (1) - topological sort
tty (1) - get terminal name
tty (4) - general terminal interface
ttynam, isatty (3F) - find name of a terminal port
ttyname, isatty, ttyslot (3) - find name of a terminal
ttys (5) - terminal initialization data
ttytype (5) - data base of terminal types by port
tu (4V) -/730 TU58 console cassette interface
tunefs (8) - tune up an existing file system
types (5) - primitive system data types
uda (4V) - UDA-50 disk controller interface
udp (4P) - Internet User Datagram Protocol
ul (1) - do underlining
umask (2) - set file creation mode mask
un (4V) - Ungermann-Bass interface
ungetc (3S) - push character back into input stream
uniq (1) - report repeated lines in a file
units (1) - conversion program
unlink (2) - remove directory entry
unlink (3F) - remove a directory entry
up (4V) - unibus storage module controller/drives
update (8) - periodically update the super block
uptime (1) - show how long system has been up
users (1) - compact list of users who are on the system
ut (4V) - UNIBUS TU45 tri-density tape drive interface
utime (3) - set file times
utimes (2) - set file times
utmp, wtmp (5) - login records
uuclean (8) - uucp spool directory clean-up
uucp, uulog (1C) - unix to unix copy
uuencode (5) - format of an encoded uuencode file
uuencode,uudecode (1C) - encode/decode a binary file for transmission via mail
uusend (1C) - send a file to a remote host
uux (1C) - unix to unix command execution
va (4V) - Benson-Varian interface
valloc (3) - aligned memory allocator
varargs (3) - variable argument list
vfont (5) - font formats for the Benson-Varian or Versatec
vfontinfo (1) - inspect and print out information about UNIX fonts
vfork (2) - spawn new process in a virtual memory efficient way
vgrind (1) - grind nice listings of programs
vgrindefs (5) - vgrind's language definition data base
vhangup (2) - virtually ``hangup'' the current control terminal
vi (1) - screen oriented (visual) display editor based on ex
vipw (8) - edit the password file with vi
vlp (1) - Format Lisp programs to be printed with nroff, vtroff, or troff
vmstat (1) - report virtual memory statistics
vp (4V) - Versatec interface
vpr, vprm, vpq, vprint (1) - raster printer/plotter spooler
vswapon (2) - add a swap device for interleaved paging/swapping
vtroff (1) - troff to a raster plotter
vv (4V) - Proteon proNET 10 Megabit ring
vwidth (1) - make troff width table for a font
w (1) - who is on and what they are doing
wait (1) - await completion of process
wait (2) - wait for process to terminate
wait (3F) - wait for a process to terminate
wait3 (2) - wait for process to terminate
wall (1) - write to all users
wc (1) - word count
what (1) - show what versions of object modules were used to construct a file
whatis (1) - describe what a command is
whereis (1) - locate source, binary, and or manual for program
which (1) - locate a program file including aliases and paths (\fIcsh\fR only)
who (1) - who is on the system
whoami (1) - print effective current user id
worm (6) - Play the growing worm game
worms (6) - animate worms on a display terminal
write (1) - write to another user
write, writev (2) - write on a file
wump (6) - the game of hunt-the-wumpus
xsend, xget, enroll (1) - secret mail
xstr (1) - extract strings from C programs to implement shared strings
yacc (1) - yet another compiler-compiler
yes (1) - be repetitively affirmative
zork (6) - the game of dungeon