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htmlifelse语句例子
#ifelse_脚本用于检查输入的字符串是否是一个当前目录#!/bin/bashif[&#34$1&#34]thenecho&#34Whatyouinputisnotnull&#34if[-e&#34$1&#34]thenecho&#34Thefile$1isexistence!&#34elseecho&#34Thefile$1isnotexistence...
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