How do I read command-line arguments with Perl?
How do I read command-line arguments with Perl?
✍: Guest
With Perl, command-line arguments are stored in the array named @ARGV.
$ARGV[0] contains the first argument, $ARGV[1] contains the second argument, etc.
$#ARGV is the subscript of the last element of the @ARGV array, so the number of arguments on the command line is $#ARGV + 1.
Here's a simple program:
#!/usr/bin/perl
$numArgs = $#ARGV + 1;
print "thanks, you gave me $numArgs command-line arguments.\n";
foreach $argnum (0 .. $#ARGV) {
print "$ARGV[$argnum]\n";
}
2013-09-19, 2014👍, 0💬
Related Topics:
How do I replace every <TAB> character in a file with a comma?
How do I replace every <TAB> character in a file with a comma? perl -pi.bak -e 's/\t/,/g' myfile.txt 2013-09-18, 2553👍, 0💬