in reply to Explanation of Perl one-liner required

rewrite the options to something 'more standard', then it's easier to read (I ignored the p being hidden in plain sight due to pi.bak and was also wondering for a sec):

perl -w -i.bak -pe 's/Text::CSV/Text::CSV_XS/g' FILE_BEING_EDITED

<Reveal this spoiler or all in this thread>

:)
Peter

In Section Seekers of Perl Wisdom