when i do ls -ltr i see bunch of .gz files says 123.gz and 456.gz
and bunch of no gz files say 789.log etc
how to grep on say "testing" on both zip gz files and non zip files
grep "testing" 789.log
zgrep "testing" 123.gz
not sure how to combine above two together
also how search today log between 10 am to 11 am for that "testing" word in log?