Mastering Shells and Shell Scripting

Many people use nothing but GUI tools for manipulating files, launching programs, and so on. This approach certainly has its merits—GUI tools tend to be easy to learn, and they fit the needs of some tasks, such as graphics programs, very well. There is an older method of interacting with computers, though, which still has advantages: text-based shells. They are programs that accept typed commands and respond to these commands by launching programs or performing actions.more...