Producing a timestamp in a batch file log

Every now and then is necessary to log some command line output. If you need to recursively do it every in a automatic way it's good that you timestamp the log file with the current date.

So to do it use a batch file with the following instructions


set startDate=%date%
set startTime=%time%

set sdy=%startDate:~10%
set /a sdm=1%startDate:~4,2% - 100
set /a sdd=1%startDate:~7,2% - 100
set /a sth=%startTime:~0,2%
set /a stm=1%startTime:~3,2% - 100
set /a sts=1%startTime:~6,2% - 100

somecommand > logfilename%sdy%%sdm%%sdd%%sth%%stm%.txt