I have scheduled backup script that makes the database dump. How can I add the date timestamp to the file name?
I am talking about Windows and CMD.
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In the command prompt and batch files, you can use
%time% to return the date and time respectively. Date works fine, but the time value returned contains colons, which are illegal for use in filenames, but there is a way to remove those.
Use something like:
COPY file.txt file_%time:~0,2%%time:~3,2%%time:~6,2%_%date:~-10,2%%date:~-7,2%%date:~-4,4%.txt
This will produce a filename such as
Update: The comments below have interesting twists on this command as well as some potential problems you can avoid.
%TIME environment variables, optionally substituting the characters that are not allowed in filenames, using
%TIME::=% would remove all colons).
theory » echo %date% 2009-06-01 theory » echo %time% 16:30:41,46 theory » echo %time::=% 163052,17 theory » echo %time::=,% 16,30,58,68 theory » echo backup-%date%-%time::=-%.zip backup-2009-06-01-16-31-18,82.zip
The only reliable way to get appropriate date whatever regional setting are is the solution of foxidrive @ https://stackoverflow.com/questions/11037831/filename-timestamp-in-windows-cmd-batch-script
@echo off for /f "tokens=2 delims==" %%a in ('wmic OS Get localdatetime /value') do set "dt=%%a" set "YY=%dt:~2,2%" & set "YYYY=%dt:~0,4%" & set "MM=%dt:~4,2%" & set "DD=%dt:~6,2%" set "HH=%dt:~8,2%" & set "Min=%dt:~10,2%" & set "Sec=%dt:~12,2%" set "datestamp=%YYYY%%MM%%DD%" & set "timestamp=%HH%%Min%%Sec%" set "fullstamp=%YYYY%-%MM%-%DD%_%HH%-%Min%-%Sec%" echo datestamp: "%datestamp%" echo timestamp: "%timestamp%" echo fullstamp: "%fullstamp%" pause
Use %DATE% variable in the filename.
There is a %TIME% variable as well, but it contains characters not allowed in a file name.
Here is an example of writing a line of text into a new file, where the file created has a date and time in its name.
echo "testfile" >> backup-%DATE%.txt
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