Linux/1-Commands

Command	Arguments	Info	Example
dir	-Flah	list folder content	dir -Flah
cat	%file	show file content	cat config.txt
nano	(%file)	file editor	nano
vi(m)	%file	file editor	vi config.txt
mkdir	%dir	create dir	mkdir /var/test
rm	%file	remove file/dir	rm autoexec.bat
cp	%from %to	copy
mv	%from %to	move
dd	if=%in of=%out	low level copy	dd if=/dev/sda2 of=/dev/sdb2
locate	%file	locate file	locate fstab
updatedb		update locate database
find	/ -n %filename	search for file

• system info
  • uname -a
  • free -m
  • fdisk -l
  • df -Th
  • du
  • ifconfig
  • top
  • vnstat
  • who, w
  • pwd

• runlevel
  • runlevel
  • init 2
  • halt
  • reboot

• network
  • pppoeconf
  • wget
  • dig
  • whois
  • nslookup
  • finger
  • route -n
  • iwconfig
  • iwlist scan

• apt
  • apt-get install <package> (-s = simulation)
  • apt-get update
  • apt-get upgrade
  • apt-get dist-upgrade
  • aptitude
  • dpkg -c
  • dpkg --get-selections
  • /etc/apt/sources.list

config files

• /boot/grub/menu.lst
• /etc/apache2/*.conf
• /etc/dhcp3/dhcpd.conf
• /etc/network/interfaces

auto eth0
iface eth0 inet static
address 192.168.0.2
netmask 255.255.255.0
network 192.168.0.0
broadcast 192.168.0.255
gateway 192.168.0.1

• /etc/rcX.d [Runlevel scripts K=Kill S=Start]
• /etc/ssh/sshd_config
• /etc/samba/smb.conf

• /etc/fstab
• /etc/hostname
• /etc/hosts
• /etc/inittab
• /etc/resolv.conf