su：swith user 切換用戶辽幌，切換到root用戶
cat: concatenate 串聯(lián)
uname: unix name 系統(tǒng)名稱
df: disk free 空余硬盤
du: disk usage 硬盤使用率
chown: change owner 改變所有者
chgrp: change group 改變用戶組
ps：process status 進(jìn)程狀態(tài)
tar：tape archive 解壓文件
chmod: change mode 改變模式
umount: unmount 卸載
ldd：list dynamic dependencies 列出動(dòng)態(tài)相依
insmod：install module 安裝模塊
rmmod：remove module 刪除模塊
lsmod：list module 列表模塊
alias :create your own name for a command
bash :gnu bourne-again shell linux內(nèi)核
grep:global regular expression print
httpd :start apache
ipcalc :calculate ip information for a host
ping :send icmp echo_request to network hosts
reboot: restart your computer
sudo:superuser do
/bin = binaries
/dev = devices
/etc = etcetera
/lib = library
/proc = processes
/sbin = superuser binaries
/tmp = temporary
/usr = unix shared resources
/var = variable ?
fifo = first in, first out
grub = grand unified bootloader
ifs = internal field seperators
lilo = linux loader
mysql = my最初作者的名字sql = structured query language
php = personal home page tools = php hypertext preprocessor
ps = prompt string
perl = "pratical extraction and report language" = "pathologically eclectic rubbish lister"
python monty python's flying circus
tcl = tool command language
tk = toolkit
vt = video terminal
yast = yet another setup tool
apache = "a patchy" server
apt = advanced packaging tool
ar = archiver
as = assembler
bash = bourne again shell
bc = basic (better) calculator
bg = background
cal = calendar
cat = catenate
cd = change directory
chgrp = change group
chmod = change mode
chown = change owner
chsh = change shell
cmp = compare
cobra = common object request broker architecture
comm = common
cp = copy
cpio = copy in and out
cpp = c pre processor
cups = common unix printing system
cvs = current version system
daemon = disk and execution monitor
dc = desk calculator
dd = disk dump
df = disk free
diff = difference
dmesg = diagnostic message
du = disk usage
ed = editor
egrep = extended grep
elf = extensible linking format
elm = electronic mail
emacs = editor macros
eval = evaluate
ex = extended
exec = execute
fd = file descriptors
fg = foreground
fgrep = fixed grep
fmt = format
fsck = file system check
fstab = filesystem table
fvwm = f*** virtual window manager
gawk = gnu awk
gpg = gnu privacy guard
groff = gnu troff
hal = hardware abstraction layer
joe = joe's own editor
ksh = korn shell
lame = lame ain't an mp3 encoder
lex = lexical analyser
lisp = list processing = lots of irritating superfluous parentheses
ln = link
lpr = line print
ls = list
lsof = list open files
m4 = macro processor version 4
man = manual pages
mawk = mike brennan's awk
mc = midnight commander
mkfs = make filesystem
mknod = make node
motd = message of the day
mozilla = mosaic godzilla
mtab = mount table
mv = move
nano = nano's another editor
nawk = new awk
nl = number of lines
nm = names
nohup = no hangup
nroff = new roff
od = octal dump
passwd = password
pg = pager
pico = pine's message composition editor
pine = "program for internet news & email" = "pine is not elm"
ping = packet internet grouper
pirntcap = printer capability
popd = pop directory
pr = pre
printf = print formatted
ps = processes status
pty = pseudo tty
pushd = push directory
pwd = print working directory
rc = runcom = run command, shell
rev = reverse
rm = remove
rn = read news
roff = runoff
rpm = rpm package manager = redhat package manager
rsh, rlogin, = remote
rxvt = our xvt
sed = stream editor
seq = sequence
shar = shell archive
slrn = s-lang rn
ssh = secure shell
ssl = secure sockets layer
stty = set tty
su = substitute user
svn = subversion
tar = tape archive
tcsh = tenex c shell
telnet = teminal over network
termcap = terminal capability
terminfo = terminal information
tr = traslate
troff = typesetter new roff
tsort = topological sort
tty = teletypewriter
twm = tom's window manager
tz = timezone
udev = userspace dev
ulimit = user's limit
umask = user's mask
uniq = unique
vi = visual = very inconvenient
vim = vi improved
wall = write all
wc = word count
wine = wine is not an emulator
xargs = extended arguments
xdm = x display manager
xlfd = x logical font description
xmms = x multimedia system
xrdb = x resources database
xwd = x window dump
yacc = yet another compiler compiler
