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Find older WordPress versions

This one-liner will help to find all WordPress installations running a specific version, where the current latest is 5.6

locate wp-includes/version.php | xargs grep "wp_version = " | grep -v " = '5-6'"

A more efficient shell script that will scan and create a list of all WordPress installations along with their version number can be found here.

whoami
Stefan Pejcic
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