Question

I have a program that reads in a file and does some parsing to it. The file is generated by another program every night. Due to the ICD the date is part of the file name.

The file name changes every night due to the date change so I am not sure how to have my program change the fileIn name to accommodate this.

If the current fileIn is:

in20120103out.dat

Tomorrow’s fileIn is:

in20120104out.dat

Answer 1

You can use the strftime() method to generate the date portion of the filename:

t = Time.­now
filename = "in#{t.strftime('%Y%m%d')}out.dat"

And then use the filename variable to open the file as normal.