I have the following line in a batch file (that runs on an old Windows 2000 box):
7z a QuickBackup.zip *.backup
How do I append the date to the QuickBackup.zip
file. So if I ran the batch file today, ideally, the file would be QuickBackup20090514.zip
.
Is there a way to do this?
Content writing to files is also done with the help of the double redirection filter >>. This filter can be used to append any output to a file. Following is a simple example of how to create a file using the redirection command to append data to files.
&& runs the second command on the line when the first command comes back successfully (i.e. errorlevel == 0 ). The opposite of && is || , which runs the second command when the first command is unsuccessful (i.e. errorlevel != 0 ).
Bernhard's answer needed some tweaking work for me because the %DATE% environment variable is in a different format (as commented elsewhere). Also, there was a tilde (~) missing.
Instead of:
set backupFilename=%DATE:~6,4%%DATE:~3,2%%DATE:0,2%
I had to use:
set backupFilename=%DATE:~10,4%%DATE:~4,2%%DATE:~7,2%
for the date format:
c:\Scripts>echo %DATE%
Thu 05/14/2009
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With