You can the best here from this link:
*geekstuffs.tripod.com/Tutorials/linuxshell.zip
or
*members.tripod.com/geekstuffs/Tutorials/linuxshell.zip
There are more tutorials here
*members.tripod.com/geekstuffs/tutorials.htm
or
*geekstuffs.tripod.com/tutorials.htm
Happy learning!