Time Saving Shell Tricks

Unix shells support many features that system administrators and programmers have found valuable. These features help save time by automatically completing commands, by enabling you to run commands you've run before with minimal effort, and by supporting editing of commands you're typing. From early in Unix history, shells have supported features that enable capturing output from programs or sending a file as input to a program, as well as sending one command's output to a second one as input. Naturally, Linux's shells incorporate these features.

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