getting help
man, info
apropos
locate
file navigation
ls
cd
pwd
cp
mv
rm
mkdir, rmdir
ln
editing files
cat
more
less
vi
emacs
joe
echo
head, tail
file permissions
chmod
chown
compressing files
tar
gzip, bzip2
zless
process control
ps
kill
jobs
top
disk management
du
df
mount, umount
/mnt, /etc/fstab
user management
passwd
adduser
addgroup
useradd
usermod
userdel
/etc/passwd, /etc/shadow, /etc/group
package management
dpkg
dselect
apt-get
miscellaneous commands
grep
find
sort
diff
uniq
sed
awk
perl
crontab
date
cal
shell commands
>
<
|
*
/
~
[tab]
ctrl-R
.bash_profile, .bash_history