Automatic Configuration Backup

[Derek Humes]

Hello, I have recently used another thread I found to setup an automatic copy of my FreeNAS configuration to one of my datasets so that in the event of a boot device failure, I have a copy of the configuration.

This is the command that I have used to test this. This command works if I issue it manually in the shell as root:
cp /data/freenas-v1.db "/mnt/volume/dataset/`date \+%Y\%m\%d`_`cat /etc/version | cut -d'-' -f2`_`cat /etc/version | cut -d'-' -f4`.db"

This creates a copy of the freenas-v1.db file with the date and version in the filename.

I have setup a Cron job on my FreeNAS GUI to run this command nightly at 10PM EST. However, each night I am receiving the below error message in email, and a copy of the configuration is NOT created.


Syntax error: EOF in backquote substitution
Syntax error: Error in command substitution


I have tried some online syntax checker tools for my command to determine why these errors are occurring, but I have not had any luck. My experience with Unix command line shell is very minimal, but slowly growing.

My machine build is FreeNAS-9.10.2-U1 (86c7ef5).

Any assistance with this would be greatly appreciated. Thank you!

 

[dlavigne]

Looks like it is the escapes that are the issue: https://bugs.freenas.org/issues/9091#note-4.

 

[Derek Humes]

This is it, thank you for the quick response - working now!

FYI I also had to edit in the script the last section to use field -F3 instead of -F4.

 

[wblock]

That can be simplified:
cp /data/freenas-v1.db "`date '+/mnt/volume/dataset/%Y-%m-%d'`_`cut -d'-' -f2,3 /etc/version`.db"

 

[Derek Humes]

Thanks for letting me know. It is working OK right now with how I have it, so I'm not touching it! Thank you though...

 

[BBarker]

Out of curiosity, did you edit your original post to reflect the properly working script?