I have several hundred files that need to be concatenated into a single file, much like this question. The problem is, that my files must must be in order. They are named with a Julian date followed by the file type.
Here's an example of the naming schema:
152_1605.old
155_0935.old
156_1535.old
etc.
This is not something I do very often and I could write my own complicated script to do this, but I feel there is a much easier way to do it and I just don't know what that way is.