Common Ubuntu Commands

commands.txt

Change folder permissions and ownership
sudo chown -R username:group directory

remove all files and folder
rm -rf foldername

move contents of one foldr to another
mv -v public_html/* /home/mannan/web/viraltabloid.in/public_html/

tar a file
tar -cf folder.tar folder/

untar a file
tar -xvf public_html.tar

copy contents of one folder to another
cp -R old.public_html/wp-content/uploads/2015/08 public_html/wp-content/uploads/2015/

See all open ports on machine
netstat -anltp | grep "LISTEN"

Show disk usage
df -h

Move files
Copy the file "foobar.txt" from a remote host to the local host
$ scp [email protected]:foobar.txt /some/local/directory