Remove every files in current directory:
ls -1 | xargs rm
apropos - find possible manual page entries
ps
find
top - Prints a display of system processes that's continually updated until the user presses q.
grep
locate
ls
scp
lsof
cut
sort
uniq
wc
split
man
tac
alias
unalias
screen
nohup
source
pgrep / pkill
kill
rdesktop
killall
skill
snice
stat
init
telinit
initctl
chkconfig
smbmount
fuser
sar
netstat
lsdev
lspci
pnpdump
sum
w - See who is logged onto the system.
wall - Prints a message to each user except those who've disabled message reception. Type Ctrl-D to end the message.
dmesg - Prints the messages resulting from the most recent system boot.
visudo
cron
rdate
mount
umount
useradd
dd
sync
rsync
LVM
grub
RRDtool
/usr/sbin/mouseconfig
hwconfig
Job Control
Bash History
dd and netcat
X Windows
SSH Tunnels
Password-less SSH
The Shell
free - Displays the amount of used and free.
ping IP - Sends an echo request via TCP/IP to the specified host. A response confirms that the host is connected to the network.
traceroute IP - Uses echo requests to determine and print a network path to the host.
uptime - Display how long the system has been up and running since last reboot.
Ethereal / Wireshark
strace
runlevel
OpenSSL
SystemImager
XAMPP / LAMPP
PVM
MPI
Beowulf
Private IP Addresses
Run Levels / Operating Modes
How to find the version of the running OS
Installing Linux Without Touching MBR
KVM
Networking
misc
Linux System Admin Tips
Linux Quota Tutorial
SSH Tunnels
Create Your Own Custom Live Linux CD
Free book on building linux kernel
Linux kernel module programming guide
http://vger.kernel.org/majordomo-info.html
http://users.dslextreme.com/~craig.lawson/linux_notes/recovery.html#cant_boot
Unix Debugging Tips
Shell Tips and Tricks
http://www.debianhelp.co.uk/backup.htm
Hard disk partitions
Linux Partition HOWTO
CHS
VirtualBox
/usr/local/sbin/pure-ftpd -e -i -R &
SELinux
lokkit
system-config-security-level
Hummingbird Exceed http://www.hummingbird.com/products/nc/exceed/index.html
http://tldp.org/HOWTO/XDMCP-HOWTO/ssh.html
Xming http://sourceforge.net/projects/xming
svcadm
http://solaris.reys.net/english/2006/04/x11_forwarding
/etc/ssh/sshd_config
http://www.stanford.edu/group/security/securecomputing/x-window/index.html
I've disabled the firewall on my desktop server, made a change to /etc/ssh/sshd_config
http://www.hackinglinuxexposed.com/articles/20040705.html
Can't open display: localhost:10.0
xclock
xeyes
export DISPLAY=192.168.1.100:0.0
http://forums.fedoraforum.org/showthread.php?t=24838
