Command-line argument parsing

Different Command-line argument parsing methods are used by different programming languages to parse command-line arguments.

Programming languages

C

Main article: C_syntax § Command-line_arguments

C uses argv to process command-line arguments.^[1]

Java

An example of Java argument parsing would be:

public class Echo {
    public static void main (String[] args) {
        for (String s: args) {
            System.out.println(s);
        }
    }
}

Perl

Perl uses $ARGV.

PHP

PHP uses argc as a count of arguments and argv as an array containing the values of the arguments.^[2][3] For example:

var_dump($argv);

Python

Python uses sys.argv, e.g.:

for arg in sys.argv:
print arg

References

1. http://publications.gbdirect.co.uk/c_book/chapter10/arguments_to_main.html
2. http://php.net/manual/en/reserved.variables.argv.php
3. wikibooks:PHP Programming/CLI