Linux/Unix System Commands

Server Info

Logins

Uptime

Reboot

Version

Os Version
Command	Explination
uname -a	Find system version
oslevel	Find version (AIX)
cat /etc/lsb-release	Version
AIX Preformance
Command	Explination
topas	Perdformance analysis program (q=quit) Extra Info: http://publib.boulder.ibm.com/infocenter/powersys/v3r1m5/index.jsp?topic=/iphcg/topas.htm
topas -P	Perdformance analysis program Processes (q=quit)
sar

sudo command to run as root user

/etc/init.d directory has stuff to start and stop.

ls -la
sudo chmod -vR 777 www

Download a file
wget http://ftp.drupal.org/files/projects/drupal-6.11.tar.gz

taring/un

tar -zcf outputfile.tar.gz dir
tar xvzf drupal-6.11.tar.gz

Moving
ls -A . | while read i; do mv ./"$i" /var/www/; done

Deleting
rm -r <>

Create a Symbolic Link
ln -s /path/to/real/file /path/to/non-existant/file

Install programs

sudo apt-get install openssh-server

Get list of installed programs

dpkg --get-selections > installed-software

Network Commands

ip a

Apache Commands

apache
restart: sudo /etc/init.d/apache2 restart
list enablled modules: sudo apache2ctl -l
enable module rewrite: sudo a2enmod rewrite
disable module: a2dismod
enable site robsite: sudo a2ensite robsite

mySQL

mysql -uroot -p<>

Ubuntu Process Listing Commands

top
ps aux

Network

netstat -tulpn
netstat -tap
sudo iptables -L -n (Current Firewall rules)

User Management

Command	Meaning
groups	lists the groups you are a member of
vi /etc/group	Show all groups
groups $$USERNAME$$	lists the groups this user is a member of
addgroup	Add a new group
users	lists users
userdel -r $$USERNAME$$	delete a user
adduser $$USERNAME$$	Add a new user - creates all stuff
adduser $$USERNAME$$ $$GROUPNAME$$	Add a user to a group

Email

mailx
ps aux | grep mail

Package Manager

Command	Meaning	System
rpm -qa	List all installed packages (Use rpm -qa > t.txt) or searching rpm -qa | grep ***SEARCH STRING***	Red Hat

Searching

grep -RH --include "*.sql" IC_GMS_LD_ACT_ENC_MV *

Utilities

Check file encoding
enca -Lnone <>
Change file to UTF-8
???Load windows machine and do it on that!!!

http://manpages.ubuntu.com/manpages/hardy/man1/enca.1.html

Output file to screen and file use tee.

Check filesystem size