Command line argument variable @ARGV in Perl
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It chops off the first two arguments from @ARGV and puts them in $var1 and $var2. Personally I would have written it as: $var1 = shift @ARGV ... Home Public Questions Tags Users Companies Collectives ExploreCollectives Teams StackOverflowforTeams –Startcollaboratingandsharingorganizationalknowledge. CreateafreeTeam WhyTeams? Teams CreatefreeTeam StackOverflowforTeamsismovingtoitsowndomain!Whenthemigrationiscomplete,youwillaccessyourTeamsatstackoverflowteams.com,andtheywillnolongerappearintheleftsidebaronstackoverflow.com. Checkyouremailforupdates. Collectives™onStackOverflow Findcentralized,trustedcontentandcollaboratearoundthetechnologiesyouusemost. LearnmoreaboutCollectives Teams Q&Aforwork Connectandshareknowledgewithinasinglelocationthatisstructuredandeasytosearch. LearnmoreaboutTeams Commandlineargumentvariable@ARGVinPerl AskQuestion Asked 7yearsago Modified 7yearsago Viewed 1ktimes 3 New!Savequestionsoranswersandorganizeyourfavoritecontent.Learnmore. Iamblankwithperl.IhaveatasktoconvertscriptfromPerltoPowerShell.Sorequestingyoutobekindwithyouranswers. IreadaboutcommandlineargumentofPerl@ARGV.IunderstandthatatthetimeofperlscriptexecutionanyargumentispassedwillcapturedbythisspecialarrayvariableinPerl.Wecanread@ARGVandassignvaluestoscalarvariableusingbelow ($var1,$var2)=@ARGV; Ineedtounderstandwhatbelowstatementisdoing ($var1,$var2,@ARGV)=@ARGV; InmyperlscriptwehaveIfconditiononvaluesin@ARGVandbasedon@ARGVvaluesrespectivesubroutineisgettingcalled. Aspermyunderstandingifwehavemorethantwovaluesin@ARGVthenonleftsideinparenthesisstatementischangingvaluesofARGV/usedtorewrite@ARGVwithremainingValues? Pleasehelpmetounderstandthiswithasimpleexample. Thanks Ravi perlcommandargumentslineargv Share Improvethisquestion Follow askedSep30,2015at10:50 RaviBhavsarRaviBhavsar 3977bronzebadges Addacomment | 1Answer 1 Sortedby: Resettodefault Highestscore(default) Trending(recentvotescountmore) Datemodified(newestfirst) Datecreated(oldestfirst) 6 Itchopsoffthefirsttwoargumentsfrom@ARGVandputsthemin$var1and$var2. PersonallyIwouldhavewrittenitas: $var1=shift@ARGV; $var2=shift@ARGV; Butitisamatteroftaste. Share Improvethisanswer Follow answeredSep30,2015at10:54 OleTangeOleTange 30.3k55goldbadges8282silverbadges9797bronzebadges 2 7 Iprobablywouldn'thavedoneeventhatmy($first,$second,@everything_else)=@ARGV;ismoremysortofthing:) – Sobrique Sep30,2015at11:11 1 @SobriqueTheremaybeacalltoGetOptionslaterinthescript,whichwouldrequirethemodificationof@ARGV. – BradGilbert Oct2,2015at23:20 Addacomment | YourAnswer ThanksforcontributingananswertoStackOverflow!Pleasebesuretoanswerthequestion.Providedetailsandshareyourresearch!Butavoid…Askingforhelp,clarification,orrespondingtootheranswers.Makingstatementsbasedonopinion;backthemupwithreferencesorpersonalexperience.Tolearnmore,seeourtipsonwritinggreatanswers. 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