How to run gpg from a script run by cron?

Question

I have a script that has a part that looks like that:

for file in `ls *.tar.gz`; do
  echo encrypting $file
  gpg --passphrase-file /home/$USER/.gnupg/backup-pas         


        

Answer 1

In my case gpg cant find home dir for using keys:

gpg: no default secret key: No secret key

gpg: 0003608.cmd: sign+encrypt failed: No secret key

So I added --homedir /root/.gnupg. The final command can looks like

echo 'password' | gpg -vvv --homedir /root/.gnupg --batch --passphrase-fd 0 --output /usr/share/file.gpg --encrypt --sign /usr/share/file.tar.bz2