readdir returns just the directory name, not the full path. If you are not running the script from /, your -d test looks for directories in the directory you started the script from. Prepend $dir to the directory name in the test to make it work: 
elsif (-d "$dir$line") {

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In reply to Re: Listing directory contents not working (SUSE Linux issue?)... by choroba
in thread Listing directory contents not working (SUSE Linux issue?)... by aquinom

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