Solution by Ruben Westerberg

perl/ch-1.sh and raku/ch-1.sh
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Run the shell script perl one liner to display octal number from 0 to 50

ch-2.pl and ch-2.p6
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Run the script to generate a random string of '(' and ')' and test if the resulting string has blanaced pairs. An optional argument of the max length of the string can be supplied. Otherwise a max length of 20 characters is used.