Which isn't surprising, because Perl was originally designed to be a replacement for shell as a scripting language. So, it borrowed lots of stuff from shell sc

Which isn't surprising, because Perl was originally designed to be a replacement for shell as a scripting language. So, it borrowed lots of stuff from shell scripting, and if you've spent lots of time in bash, awk, sed, etc, then elements of Perl (and Raku) will look very familiar.