gpg-zip : passphrase as parameter for scripts

[arno.s]

I am using in a script, with more than one of this kind of lines:

#!/bin/sh
/usr/local/bin/gpg-zip -o /opt/u1.tar.gpg -s /opt/1*
/usr/local/bin/gpg-zip -o /opt/u2.tar.gpg -s /opt/2*
...

I have to answer every line with question for passphrase. This sucks.

I have seen there is a parameter --gpg-args where I can pass args to gpg.
But I don't get this working with some kind of

echo 'passphrase' | gpg-zip --gpg-args --passphrase-fd -o ... - s

Anybody an idea how this is working?

Best regards
Arno

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