GPG Error Code 2

Question

GPG is always returning 2 at the result. My code is as follows

$cmd = \"/usr/bin/gpg -a --recipient $to -e -o $outfile $infile\";

Where outfile

Answer 1

I had the same problem, but for the decoding command

At first and general, you can get the error message by redirecting stderr to stdout.

$cmd = "/usr/bin/gpg -a --recipient $to -e -o $outfile $infile 2>&1";

Then you can modify gpg's parameters to suit your needs. Because I had a files encrypted with a key with pass phrase I had to add several parameters.

I started with

gpg  -o $out -d $path

But it complained, that it can not open tty, then with --no-tty it outputs some other errors and finally the command for decoding files with key with pass phrase is

gpg --batch --passphrase $pass_phrase --no-tty -o $outfile -d $path_to_encoded_file

I hope this helps someone.