I’d like to share a simple way I’ve learned to find how many files have been created between two dates, using Linux command line. The method involves find command.
Working on a project that involved the creation of a lot of KOS objects (nothing difficult, just another DICOM object), I needed a quick and easy way to find out how many files my class method created.
I knew that find command could help, so I started digging into its manual and at the end I found the right option:
True if the current file has a more recent last access time
(X=a), inode creation time (X=B), change time (X=c), or modifica-
tion time (X=m) than the last access time (Y=a), inode creation
time (Y=B), change time (Y=c), or modification time (Y=m) of
file. In addition, if Y=t, then file is instead interpreted as a
direct date specification of the form understood by cvs(1). Note
that -newermm is equivalent to -newer.
after many trials I ended up with newermt which is newer with sub-options X=m for modification date and Y=t for literal time.
At this point my “command” was taking shape:
find -type f -name "*.dcm" -newermt 2016-04-08 ! -newermt 2016-04-09
Last thing I needed to know, was the number of files that have been created in the desired date interval and this was the easiest part of the command:
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