Shell

http://codesnippets.joyent.com/posts/show/414 have u ever tried to get unicode ouput in windows console? You need to change console font to TrueType a and “C:>chcp 65001” i.e. change windows code page. Read the link if you want those changes to be permanent

http://tldp.org/LDP/abs/html/ guide introduces various specific topics like arrays, variable scopes, etc.

http://cb.vu/unixtoolbox.xhtml awseme reference, any *nix sysadmin must bookmark it