> just found this line from some website:

> echo "$NUM" | sed -r ':a;s/^([-+]?[0-9]+)([0-9]{3})/\1,\2/;ta'

IMHO not the same thing, but if you're happy... 🤷🏻‍♂️

Cheers Rolf
(addicted to the Perl Programming Language :)
see Wikisyntax for the Monastery

In reply to Re^3: Commify function regex in Perl vs sed (off-topic sed) by LanX
in thread Commify function regex in Perl vs sed by harangzsolt33

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