To find all files modified in the last 24 hours (last full day) in a particular specific directory and its sub-directories:
find /directory_path -mtime -1 -ls
Should be to your liking
The -
before 1
is important – it means anything changed one day or less ago.
A +
before 1
would instead mean anything changed at least one day ago, while having nothing before the 1
would have meant it was changed exacted one day ago, no more, no less.