Linux Rename file with only time/date stamp

Question

I have a single file which I want to rename mv to year_month_day_h:m:s - whats the best way to do that?

I've tried the following but it doesn't dynamically add the correct stamp (original file actually has a backslash in the name):

mv getnw/myfilename.txt "%Y%m%d%H%M%S".txt mv getnw/myfilename.txt "%Y-%m%d%H%M%S".txt mv getnw/myfilename.txt %Y-%m%d%H%M%S.txt mv getnw/myfilename.txt "'date +%Y%m%d%H%M%S'.txt"

Answer 1

mv myfile.txt myfile`date -Is`.txt

is a shorter version

but : won't work with some of the unix commands like rsync or scp because it parses part of the name as a host address. use tr to change :

mv myfile.txt myfile`date -Is|tr : -`.txt

or

mv myfile.txt myfile$(date -Is|tr : -).txt

Answer 2

mv myfile.txt `date +%Y_%m_%d_%H:%M:%S`.txt