Basic Shell Commands

From BlueFur.com Support Wiki

Here is a list of some basic shell commands:

cd /home/ 

Will change directory to the /home directory

top 

This shows basic information such as uptime, CPU usage, memory usage and processes running

ls 

Lists all files in a directory

ls -al 

Lists all files plus hidden files

ps aux 

Shows all processes running

netstat -natp 

Shows all active TCP connections to your server

netstat -naup 

Shows all active UDP connections to your server

tail filename 

Shows the end contents of a file, good for viewing last entries to log files

who 

Shows who is logged into shell

last 

Shows a list of all accesses to the server ftp and shell

pwd 

shows your current position in the filesystem

locate expression 

Will find all files named with 'expression'

locate expression | more 

Will find all files named with 'expression', only gives you a few results at a time, press enter for more

find . -type f -exec fgrep -li happy {} ; 

Will list all files in the current directory that contain the word 'happy'

chown username.group file.txt 

Will change the ownership of file.txt to user 'username and group 'group'

chmod 755 file.cgi 

Will change the permissions on file.cgi

cp file.txt file2.txt 

Copies file.txt to file2.txt

rm file.txt 

Deletes file.txt

pico /home/user/file.php 

Edit or, if it doesn't already exist, create the file 'file.php'

exit 

Logs you out of shell