Let's assume I have done lots of work whittling down a list of files in a directory down to the 10 files that I am interested in. There were hundreds of files, and I have finally found the ones I need.
I can either pipe out the results of this (piping from ls), or I can say I have an array of those values (doing this inside a script). Doesn't matter either way.
Now, of that list, I want to find only the files that were created yesterday.
We can use tools like find -mtime 1 which are fine. But how would we do that with a subset of files in a directory? Can we pass a subset to find via xargs?
I can do this pretty easily with a for loop. But I was curious if you smart people knew of a one-liner.
If they're in an array:
files=(...)
find "${files[@]}" -mtime 1
If they're being piped in:
... | xargs -d'\n' -I{} find {} -mtime 1
Note that the second one will run a separate find command for each file which is a bit inefficient.
If any of the items are directories and you don't want to search inside of them, add -maxdepth 0 to disable find's recursion.