![bash variable scope if statement](/plugins/HC_Emoticons/emoticons/tuski/07.gif)
2015年12月2日—I'mfairlynewtoscriptingandIwanttolearnhowtocheckthevaluesof$?tocheckwhethertheagrepcommandwassuccessful,Ifthegrep ...,2013年9月17日—Bystandarditshouldbeif[$time-gt300]&&[$time-lt900]thenmod=2elsemod=0fi.Innormalshellscriptsyouuse[an...
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Ashortexplanationoftheexample:firstwecheckifthefilesomefileisreadable(if[-rsomefile]).Ifso,wereaditintoavariable.Ifnot,wecheck ...
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