Linux查找文件-mtime

Question

So my question is about using find -mtime (and atime & ctime as well). As I already know -mtime -n searches files that are newer than n days, +n older than n days and -mtime n searches files exactly n days old. What if I want to find files that are newer than n days and exactly n days old? Will find / -type f -mtime -n -mtime n work? Or I just need to use find / -type f -mtime -n ? Or both as separate commands?

Answer 1

The most obvious solution is to add 1 to $n when using it with -mtime :

find / -type f -mtime -$((n+1))

But you could use -o to combine conditions with OR (the default combination is AND ):

find / -type f \( -mtime $n -o -mtime -$n \)

Answer 2

You can use the find operators -o or -or to specify that you want either of your tests to succeed.

Your command should look like this:

find / -type f \( -mtime -n -o -mtime n \)