bash if parameter
Thistutorialaimstohelpthereaderunderstandingconditionsinbash,andprovidesacomprehensivelistofthepossibilities.,2023年4月6日—Todisplaythenameofascriptwhenit'srun,useacommandlikeecho$0.Whileanyonerunningascriptwillundoubtedlyknowwhatscriptthey ...,2...
How To Check Existence of Input Argument in a Bash Shell ...
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Wecanusedifferenttechniquestochecktheexistenceofinputarguments,suchasusingthetestcommand,the$#variable,orthe-noption.
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