Ten more command-line concoctions.

A great number of shell features affect how the command name you type is interpreted. Each shell has an assortment of built-in commands; the PATH environment variable specifies the list and order of directories to search; and each alias acts as shorthand. With so many ways to run a program, how do you know what you're actually executing? Use the built-in type command of the shell to reveal the truth. read more.