sed vs. PERL

sed one-liners are here
sed FAQ is here

I wanted to change all occurrences of PRIVATE to NJPRIVATE in a bunch of files. It’s a simple command in sed, but what about replacing the file? output to temporary, then copy? yes, but.

the PERL solution is

perl -pi -e 's/PRIVATE/NJPRIVATE/' `grep -l PRIVATE *.php`

the magic is

-p loop and swallow the files, and print default.
-i edit the files in-place
-e do the command

solution found at Debian Administration

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