tar command examples

tar cjvf myfiles.tar.bz2 *.txt
tar czvf myfiles.tar.gz *.txt

tar cf filename.tar dirname
or
cd into directory tar cvf filename.tar *

tar cvf /dev/fd0 /usr/src /etc /home

home dir back up

cd /home

sudo tar czvf /tmp/homedir.tgz *
sudo tar czvf /tmp/homedir.tgz * --newer "2006-06-23"
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tar -jxvf file.tar.bz2
tar -zxvf file.tar.gz -C /tmp