script to clean my keyring

[Michael]

Hello,

I like to clean my key ring automatically. I have put the attached lines 
together to do this. But something is wrong, the script shows the data 
which need to be changed but the update is not saved. Experts, what is 
wrong here??


for i in `gpg --list-keys --fixed-list-mode --with-colons |
grep "^pub" | cut -f5 -d":"` ; do
                gpg --batch --yes --edit-key $i clean
done


And a general Question: 
I like to frequently run "gpg --refresh-key" and after this the above 
script, in case it works, to get rid of the overhead. Do you think this 
is a good idea to do so?


Thanks a lot 
Michael