Both in a GUI interface and a CLI we interact with the system. In this chapter we take a insight look at the advanced features of the command line.
The default shell is often Bash (Bourne Again Shell). Bash is a modern rewrite of the original Bourne shell, sh, witch was written 1977. Even tho there are many shells available, like tcsh, csh and ksh, bash is increasingly popular due to its useful featureset. We will look in detail of some of those features here.
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