Unix Commands (Command line & Shell Script)

Here is an excellant article I found in IBM's Developerworks, which explains the basics of using commands in Command Line and while writing Shell Scripts.


http://www.ibm.com/developerworks/aix/library/au-spunix_clitricks/index.html?ca=drs-tp4008


Also I would recommend you to go through the articles in References section.
I'm not sure whether the Developerworks site has provided options to rise your doubts in the article's page iself so that the original author could respond to your queries. In case the option is not provided, do write your queries here I'll try to respond in this post.