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First I'd like to remind you if possible to use some other alternative methods to achieve your goal (eg. combining the 2 scripts into one), as it seems the method you mentioned is a little...

# Loop over a file and read $LINE {
$text = split ('|', $line)[2];
}

the grep is the utility that you'd better use.
grep '^[0-9]\{4\}$' <filename>

find . -type f -name "*2392*.html" -ls

the short one.

cat <filename> | sort -u | awk '{a[$1]++} END{for (f in a) print f, a[f]}'

this command works for your question.