Case Process Control in the shell

Case Flow control:

Case structures are used for condition judgments in a variety of situations. Similar to switch/case statements in other programming languages, but it is very different from the grammatical form.

Case string in

Mode

Statement

;;

Mode 2 | Mode 3)

Statement

;;

*)

statements executed by default

;;

Esac

Tip: Esac is the case in turn.

Break and Continue

Break command allows you to jump out of a loop. break usually exits a loop or case statement after some processing. If it is in a

An embedded loop, you can specify the number of loops to jump out. For example, if within a two-tier loop, break 2 just jumps out of the entire

Cycle.

Continue command is similar to Break command, there is only one important difference, it will not jump out of the loop, just skip this

Loop step.

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Case Process Control in the shell