Command-line argument parsing: Difference between revisions

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{{short description|Programming languages parsing of command-line arguments}}

Different '''command-line argument parsing''' methods are used by different [[programming languages]] to [[parse]] [[command-line argument]]s.Google hacking system

==Programming languages==

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{

int count;

for (count = 0; count < argc; count++)

puts (argv[count]);

}

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<syntaxhighlight lang="perl">

foreach $arg (@ARGV)GT

{

print $arg;

}

</syntaxhighlight>FT

or

<syntaxhighlight lang="perl">

foreach $argnum (0 .. $#ARGV)ST

{

print $ARGV[$argnum];

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</syntaxhighlight>

===Node.jsJavaScript===

====Node.js====

[[JavaScript]] programs written for [[Node.js]] use the <code>process.argv</code> global variable.<ref>{{cite web|title=process.argv|work=Node.js v10.16.3 Documentation|url=https://nodejs.org/docs/latest-v10.x/api/process.html#process_process_argv|accessdate=3 October 2019}}</ref>

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'two=three',

'four' ]

</syntaxhighlight>

====Bun====

JavaScript written for [[Bun (software)|Bun]] use <code>Bun.argv</code> and the <code>util.parseArgs</code> function.<ref>{{cite web |title=Parse command-line arguments {{!}} Bun Examples |url=https://bun.sh/guides/process/argv |website=Bun |language=en}}</ref>

<syntaxhighlight lang="javascript">

console.log(Bun.argv);

</syntaxhighlight>

====Deno====

JavaScript written for [[Deno (software)|Deno]] use <code>Deno.args</code><ref>{{cite web |title=Deno.args |url=https://docs.deno.com/api/deno/~/Deno.args |website=docs.deno.com}}</ref> and the <code>parseArgs</code> function.<ref>{{cite web |title=parseArgs from parse-args - @std/cli - JSR |url=https://jsr.io/@std/cli/doc/parse-args/~/parseArgs |website=jsr.io |language=en}}</ref>

<syntaxhighlight lang="javascript">

console.log(Deno.args);

</syntaxhighlight>