I suggest you Are u a beginner just go through this link "http://www.tutorialspoint.com/perl/index.htm" and then move to perl.com here we have a lot of simple examples to try it..!
For shell:http://www.freeos.com/guides/lsst/ch04sec11.html or "http://www.tutorialspoint.com/unix/index.htm" for shell script go through the above website these all for only beginners not for monks..!