case esac

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Case ... Esac is similar to the switch ... case statement in other languages, and is a multi-branch selection structure.The case statement matches a value or a pattern, and if the match succeeds, the matching command is executed. The case statement

#case: ESAC statement: with switch. Case similar, is a multi-branch selection structure#case语句匹配一个值或一个模式 if the match succeeds in executing the corresponding command, if the match does not execute the * command successfully#;; Similar to break, the

1. case... in... esac The syntax of case... in... esac is as follows:Case $ variable name in"First variable content ")Program Section;;"Second variable content ")Program Section;;*)Other Program Execution segments that do not contain the first

Conditional judgment----Use case ... ESAC judgmentCase $ variable name in "First variable content") Program Segment;; "Second variable content")Program Segment;;*) Other program execution segments that do not contain the contents of the first

Case $ variable name in "First variable content ") ProgramSegment ;; "Second variable content ") Program Section ; *) Other program segments that do not contain the first variable content or the second variable content Exit 1 ;;

Case ... Esac is similar to the switch ... case statement in other languages, and is a multi-branch selection structure.The case statement matches a value or a pattern, and if the match succeeds, the matching command is executed. The case statement

Case ... Esac is similar to the switch ... case statement in other languages, and is a multi-branch selection structure.The case statement matches a value or a pattern, and if the match succeeds, the matching command is executed. The case statement

Case ... Esac is similar to the switch ... case statement in other languages, and is a multi-branch selection structure.The case statement matches a value or a pattern, and if the match succeeds, the matching command is executed. The case statement

1, the use of CASE...ESAC#!/bin/Bashecho"Please enter a number to choose a different way to display files and directories:"Echo"1-Normal display"Echo"2-Detailed display"Echo"3-Show hidden files"Echo"4-Exit"Read NUM1 Case$num 1inch 1) LS;; 2)