(4)	
(4)	
(4)	
(4)	
(4)	
a.out (5)	- assembler and link editor output format
abort (3)	- generate IOT fault
abs (3)	- integer absolute value
ac (1M)	- login accounting
access (2)	- determine accessibility of file
acct (2)	- turn accounting on or off
acct (5)	- execution accounting file
adb (1)	- debugger
alarm (2)	- schedule signal after specified time
ar (1)	- archive and library maintainer
ar (5)	- archive (library) file format
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
awk (1)	- pattern scanning and processing language
backgammon (6)	- the game
banner (6)	- make long posters
basename (1)	- strip filename affixes
bc (1)	- arbitrary-precision arithmetic language
bcd, ppt (6)	- convert to antique media
bj (6)	- the game of black jack
boot (8)	- startup procedures
brk, sbrk, break (2)	- change core allocation
bstring, bcopy, bcmp, bzero, ffs (3)	- bit and byte string operations
cal (1)	- print calendar
calendar (1)	- reminder service
cat (1)	- catenate and print
cb (1)	- C program beautifier
cc (1)	- C compiler
cd (1)	- change working directory
chdir, chroot (2)	- change default directory
checkers (6)	- game
chess (6)	- the game of chess
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, chgrp (1)	- change owner or group
close  (2)	-  close a file
clri (1M)	- clear i-node
cmp (1)	- compare two files
col (1)	- filter reverse line feeds
comm (1)	- select or reject lines common to two sorted files
core (5)	- format of core image file
cp (1)	- copy
crash (8)	- what to do when the system crashes
creat  (2)	-  create a new file
cron (8)	- clock daemon
crypt (1)	- encode/decode
crypt, setkey, encrypt (3)	- DES encryption
ctags (1)	- create a tags file for use with ex and vi
ctime, localtime, gmtime, asctime, timezone (3)	-  convert date and time to ASCII
cu (1C)	- call UNIX
curses (3X)	- cursor addressing and screen display library
date (1)	- print and set the date
dbminit, fetch, store, delete, firstkey, nextkey (3X)	- data base subroutines
dbx (1)	- source-level debugger
dc (1)	- desk calculator
dcheck (1M)	- 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
diff (1)	- differential file comparator
diff3 (1)	- 3-way differential file comparison
dir (5)	- format of directories
directory, opendir, readdir, telldir, seekdir, rewinddir, closedir (3)	- directory operations
dmesg (8)	- collect system diagnostic messages to form error log
du  (1)	-  summarize disk usage
dump (1M)	- incremental file system dump
dump, ddate (5)	- incremental dump format
dumpdir (1M)	- print the names of files on a dump tape
dup, dup2 (2)	- duplicate an open file descriptor
echo (1)	- echo arguments 
ecvt, fcvt, gcvt (3)	- output conversion
ed (1)	- text editor
end, etext, edata (3)	- last locations in program
environ (5)	- user environment
ethernet (4)	- Ethernet interface
execl, execv, execle, execve, execlp, execvp, exec, exece, environ  (2)	- execute a file
exit (2)	- terminate process
exp, log, log10, pow, sqrt (3M)	- exponential, logarithm, power, square root
expr (1)	- evaluate arguments as an expression
fabs, floor, ceil (3M)	- absolute value, floor, ceiling functions
factor, primes (1)	- factor a number, generate large primes
fclose, fflush (3S)	- close or flush a stream
fd, stdin, stdout, stderr, tty (4)	- file descriptor files
feof, ferror, clearerr, fileno (3S)	- stream status inquiries
file (1)	- determine file type
filsys, flblk, ino ()	- format of file system volume
find (1)	- find files
fopen, freopen, fdopen (3S)	- open a stream
fork  (2)	-  spawn new process
fread, fwrite (3S)	- buffered binary input/output
frexp, ldexp, modf (3)	- split into mantissa and exponent
fseek, ftell, rewind (3S)	- reposition a stream
fstab, mtab (5)	- static filesystem mounting table, mounted filesystems table
fsync (2)	- synchronize a file's in-core state with that on disk
getc, getchar, fgetc, getw (3S)	- get character or word from stream
getenv (3)	- value for environment name
getfsent, getfsspec, getfsfile, getfstype, setfsent, endfsent (3)	- get file system descriptor file entry
getgrent, getgrgid, getgrnam, setgrent, endgrent (3)	- get group file entry
getlogin (3)	- get login name
getpass (3)	- read a password
getpgrp (2)	- get process group
getpid, getppid  (2)	-  get process identification
getpw (3)	- get name from UID
getpwent, getpwuid, getpwnam, setpwent, endpwent (3)	- get password file entry
gets, fgets (3S)	- get a string from a stream
getty  (8)	- set typewriter mode
getuid, getgid, geteuid, getegid (2)	- get user and group identity
gprof (1)	- display call-graph profile data
grep, egrep, fgrep (1)	- search a file for a pattern
group (5)	- group file
hangman, words (6)	- word games
hier (7)	- file system hierarchy
hypot, cabs (3M)	- euclidean distance
icheck (1M)	- file system storage consistency check
ifconfig, udpconfig (8)	- set up DARPA Internet protocols
in_host, in_ntoa, in_address, in_service (3X)	- internet networking functions
init, rc  (8)	-  process control initialization
intro (1)	- introduction to commands
intro (3)	- introduction to library functions
intro (4)	- introduction to special files and hardware support
intro, errno (2)	- introduction to system calls and error numbers
ioctl, stty, gtty (2)	- control device
iostat (1M)	- report I/O statistics
isalpha, isupper, islower, isdigit, isalnum, isspace, ispunct,  isprint, iscntrl, isascii (3)	- character classification
itom, madd, msub, mult, mdiv, min, mout, pow, gcd, rpow (3X)	- multiple precision integer arithmetic
j0, j1, jn, y0, y1, yn (3M)	- bessel functions
join (1)	- relational database operator
kgmon (8)	- generate a dump of the operating system's profile buffers
kill  (2)	-  send signal to a process
kill (1)	- terminate a process with extreme prejudice
killpg (2)	- send signal to a process group
l3tol, ltol3 (3)	- convert between 3-byte integers and long integers
ld (1)	- link editor
lex (1)	- generator of lexical analysis programs
link (2)	- link to a file
lint (1)	- a C program verifier
ln  (1)	-  make a link
lock (2)	- lock a process in primary memory
login  (1)	-  sign on
look (1)	- find lines in a sorted list
lookall (1)	- look through all text files on UNIX
lorder (1)	- find ordering relation for an object library
ls  (1)	-  list contents of directory
lseek, tell (2)	- move read/write pointer
m4 (1)	- macro processor
mail  (1)	-  send or receive mail among users
make (1)	- maintain program groups
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
maze (6)	- generate a maze problem
mem, kmem  (4)	-  core memory
mesg  (1)	-  permit or deny messages
mkconf (1M)	- generate configuration tables
mkdir  (1)	-  make a directory
mkfs (1M)	- construct a file system
mknod (1M)	- build special file
mknod (2)	- make a directory or a special file
mktemp (3)	- make a unique file name
monitor (3)	- prepare execution profile
moo (6)	- guessing game
more, page (1)	- file perusal filter for crt viewing
mount, umount (1M)	- mount and dismount file system
mount, umount (2)	- mount or remove file system
ms (7)	- macros for formatting manuscripts
msgbind, fdsid, msgalloc, msgfree, msgsend, msgrecv (2)	- Adaptive IPC routines
mtab (5)	- mounted file system table
mv  (1)	-  move or rename files and directories
ncheck  (1M)	-  generate names from i-numbers
netstat (1C)	- show network status
newgrp (1)	- log in to a new group
nice (2)	- set program priority
nice, nohup (1)	- run a command at low priority
nlist (3)	- get entries from name list
nm  (1)	-  print name list
null (4)	- data sink
od  (1)	-  octal dump
open (2)	- open for reading or writing
p, more (1)	- paginate
passwd (1)	- change login password
passwd (5)	- password file
pause (2)	- stop until signal
pep (4)	- Packet exchange protocol (non-NMS)
perror, sys_errlist, sys_nerr (3)	- system error messages
ping (8C)	- send ICMP ECHO_REQUEST packets to network hosts
pipe (2)	- create an interprocess channel
plot (5)	- graphics interface
popen, pclose (3S)	- initiate I/O to/from a process
pr  (1)	-  print file
prep (1)	- prepare text for statistical processing
printf, fprintf, sprintf (3S)	- formatted output conversion
prof (1)	- display profile data
profil (2)	- execution time profile
pstat (1M)	- print system facts
ptrace  (2)	-  process trace
ptx (1)	- permuted index
pubindex (1)	- make inverted bibliographic index
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
qsort (3)	- quicker sort
quiz (6)	- test your knowledge
quot (1M)	- summarize file system ownership
rand, srand (3)	- random number generator
ranlib (1)	- convert archives to random libraries
rcp (1C)	- remote file copy
read, write (2)	- read or write file
reboot (8)	- restart the operating system
refer, lookbib (1)	- find and insert literature references in documents
regex, re_comp, re_exec (3)	- regular expression handler
restor (1M)	- incremental file system restore
rev (1)	- reverse lines of a file
reversi (6)	- a game of dramatic reversals
rlogin (1C)	- remote login
rlogind, in.rlogind (8C)	- remote login server
rm, rmdir  (1)	- remove (unlink) files
route (8C)	- manually manipulate the routing tables
routed, in.routed (8C)	- network routing daemon
rsh (1C)	- remote shell
rshd, in.rshd (8C)	- remote shell server
sa, accton (1M)	- system accounting
savecore (8)	- save a core dump of the operating system
scanf, fscanf, sscanf (3S)	- formatted input conversion
sed (1)	- stream editor
select (2)	- synchronous I/O multiplexing
select (2)	- synchronous input/output multiplexing
setbuf (3S)	- assign buffering to a stream
setjmp, longjmp (3)	- non-local goto
setpgrp (2)	- set process group
setuid, setgid (2)	- set user and group ID
sh, for, case, if, while, .BR : , .BR . , break, continue, cd, eval, exec, exit, export, login, newgrp, read, readonly, set, shift, times, trap, umask, wait (1)	- command language
signal (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
sort (1)	- sort or merge files
spell, spellin, spellout (1)	- find spelling errors
split (1)	- split a file into pieces
stat, fstat (2)	- get file status
stdio (3S)	- standard buffered input/output package
stime (2)	- set time
strcat, strncat, strcmp, strncmp, strcpy, strncpy, strlen, index, rindex (3)	- string operations
stream (4)	- communication channels
strip  (1)	-  remove symbols and relocation bits
stty (1)	- set terminal options
su  (1)	-  substitute user id temporarily
sum (1)	- sum and count blocks in a file
swab (3)	- swap bytes
sync (1M)	- update the super block
sync (2)	- update super-block
system (3)	- issue a shell command 
tabs (1)	- set terminal tabs
tail (1)	- deliver the last part of a file
tar  (1)	-  tape archiver
tbl (1)	- format tables for nroff or troff
tee (1)	- pipe fitting
termcap (5)	- terminal capability data base
termcap, tgetent, tgetnum, tgetflag, tgetstr, tgoto, tputs (3X)	- terminal independent operation routines
test (1)	-  condition command
tftp (1C)	- trivial file transfer program
time (1)	- time a command
time, ftime (2)	- get date and time
times (2)	- get process times
touch (1)	- update date last modified of a file
tr (1)	- translate characters
troff, nroff (1)	- text formatting and typesetting
true, false (1)	- provide truth values
tsort (1)	- topological sort
ttt, cubic (6)	- tic-tac-toe
tty (1)	- get terminal name
tty (4)	- general terminal interface
ttyname, isatty, ttyslot (3)	- find name of a terminal
ttys (5)	- terminal initialization data
types (5)	- primitive system data types
umask (2)	- set file creation mode mask
ungetc (3S)	- push character back into input stream
uniq (1)	- report repeated lines in a file
unlink (2)	- remove directory entry
update (8)	- periodically update the super block
utime (2)	- set file times
utmp, wtmp (5)	- login records
uucp, uulog (1C)	- unix to unix copy
uux (1C)	- unix to unix command execution
varargs (3)	- handle variable argument list
vi, view (1)	- visual display editor based on ex(1)
wait (1)	- await completion of process
wait (2)	- wait for process to terminate
wall  (1M)	-  write to all users
wc (1)	- word count
which (1)	- print path to command
who  (1)	-  who is on the system
write  (1)	-  write to another user
wump (6)	- the game of hunt-the-wumpus
yacc (1)	- yet another compiler-compiler
