i tried to ask about this earlier, but didn't explain well enough. From a script, i issue the following:

echo `pgp --encrypt filename --recipient public-key`

The result is perfect. The encrypted file is in the directory just as if i'd issued the pgp command from the command line.

However, when i issue the following:

echo `pgp --decrypt filename --passphrase passphrase`

nothing happens. When this exact command is issued from a command line, the decrypted file is created.

Why does the first command issued by echo execute and not the second? i must be missing something.