[SOLVED] grep -v no longer excluding pattern after migration

Issue

One of our shared hosting sites got moved recently. New server is Red Hat 4.8.5-36. The other binaries' versions are grep (GNU grep) 2.20 and find (GNU findutils) 4.5.11

This cron job had previously functioned fine for at least 6 years and gave us a list of updated files which did not match logs, cache etc.

find /home/example/example.com/public_html/ -mmin -12 \
    | grep -v 'error_log|logs|cache'

After the move the -v seems to be ineffectual and we get results like

/home/example/example.com/public_html/products/cache/ssu/pc/d/5/c

The change in results occurred immediately after the move. Anyone have an idea why it is now broken? Additionally - how do I restore the filtered output?

Solution

If you like to exclude a group of words.

grep -v -e 'error_log' -e 'logs' -e 'cache' file

With awk you can do:

awk '!/error_log|logs|cache/' file

It will exclude all lines with these words.

Answered By - Jotne