UNIX for Dummies Questions & Answers

The script below fails with the following error messages:
gzip: invalid option -- 'w'
Try `gzip --help' for more information.
mysqldump: Got errno 32 on write
cp: invalid option -- 'w'
Try `cp --help' for more information.
rm: invalid option -- 'w'
Try `rm --help' for more information.

Here's the script:

#!/bin/bash
nice -n 19 mysqldump --user=root --password=0@9fI6qukyBY --all-databases -c | nice -n 19 gzip -9 > /home/tech/'date +%Y%m%d' -wikibackup.tar.gz
cp /home/tech/'date +%Y%m%d' -wikibackup.tar.gz /mnt/dathomir
rm /home/tech/'date +%Y%m%d' -wikibackup.tar.gz

I thought that would be a common enough error message that I could quickly google an answer but I have had no luck. I appreciate any insight. Thanks!

Well you have bigger issues as it seems you posted your root password for all to see!

I think you intended backquotes around your date command, not single quotes and I would highly recommend you do not start a filename with a dash, most every command you try to pass that as an arg to will think you are specifying an option, hence all the -w errors on every command.

Change that root password ASAP!