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Largely used GPF codes are of three types :

1. 0 is success (all other values indicate a failure).
2. 2 is usually used for unxpected errors.
3. 1 for things like a BAD signature.

The proper way to identify an error is by interpreting the output of --status-fd.

Now for the particular Question that you are using, there might be two reasons :

1. GPG is asking whether you want to continue on with the encryption using an unsigned key. Since no user can input Y it produces an error.

To fix this provide the following switches :

    --yes and --always-trust

2. It may also be a permission problem. gpg is trying to access a directory that it can't have access to, so it fails with a fatal error. (error code 2)

You can fix that by specifying a homedir directive with a directory writable by gpg. Like this:

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

Information from man gpg:

   --homedir directory
   Set the name of the home directory to directory

    If this option is not used it defaults to "~/.gnupg". It does not make sense to    use     this in a options file. This also overrides the environment variable $GNUPGHOME.

You can also use this link to know more about this one.

Largely used GPF codes are of three types :

1. 0 is success (all other values indicate a failure).
2. 2 is usually used for unxpected errors.
3. 1 for things like a BAD signature.

The proper way to identify an error is by interpreting the output of --status-fd <file descriptor> or --status-file <filename>.

Now for the particular Question that you are using, there might be two reasons :

1. GPG is asking whether you want to continue on with the encryption using an unsigned key. Since no user can input Y it produces an error.

To fix this provide the following switches :

    --yes and --always-trust

2. It may also be a permission problem. gpg is trying to access a directory that it can't have access to, so it fails with a fatal error. (error code 2)

You can fix that by specifying a homedir directive with a directory writable by gpg. Like this:

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

Information from man gpg:

   --homedir directory
   Set the name of the home directory to directory

    If this option is not used it defaults to "~/.gnupg". It does not make sense to    use     this in a options file. This also overrides the environment variable $GNUPGHOME.

You can also use this link to know more about this one.

Largely used GPF codes are of three types :

1. 0 is success (all other values indicate a failure).
2. 2 is usually used for unxpected errors.
3. 1 for things like a BAD signature.

The proper way to identify an error is by interpreting the output of --status-fd.

Now for the particular Question that you are using, there might be two reasons :

1. GPG is asking whether you want to continue on with the encryption using an unsigned key. Since no user can input Y it produces an error.

To fix this provide the following switches :

    --yes and --always-trust

2. It may also be a permission problem. gpg is trying to access a directory that it can't have access to, so it fails with a fatal error. (error code 2)

You can fix that by specifying a homedir directive with a directory writable by gpg. Like this:

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

Information from man gpg:

   --homedir directory
   Set the name of the home directory to directory

    If this option is not used it defaults to "~/.gnupg". It does not make sense to    use     this in a options file. This also overrides the environment variable $GNUPGHOME.

You can also use this link to know more about this one.

Hope this helps you .

Largely used GPF codes are of three types :

1. 0 is success (all other values indicate a failure).
2. 2 is usually used for unxpected errors.
3. 1 for things like a BAD signature.

The proper way to identify an error is by interpreting the output of --status-fd.

Now for the particular Question that you are using, there might be two reasons :

1. GPG is asking whether you want to continue on with the encryption using an unsigned key. Since no user can input Y it produces an error.

To fix this provide the following switches :

    --yes and --always-trust

2. It may also be a permission problem. gpg is trying to access a directory that it can't have access to, so it fails with a fatal error. (error code 2)

You can fix that by specifying a homedir directive with a directory writable by gpg. Like this:

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

Information from man gpg:

   --homedir directory
   Set the name of the home directory to directory

    If this option is not used it defaults to "~/.gnupg". It does not make sense to    use     this in a options file. This also overrides the environment variable $GNUPGHOME.

You can also use this link to know more about this one.

Largely used GPF codes are of three types :

1. 0 is success (all other values indicate a failure).
2. 2 is usually used for unxpected errors.
3. 1 for things like a BAD signature.

The proper way to identify an error is by interpreting the output of --status-fd.

Now for the particular Question that you are using, there might be two reasons :

1. GPG is asking whether you want to continue on with the encryption using an unsigned key. Since no user can input Y it produces an error.

To fix this provide the following switches :

    --yes and --always-trust

2. It may also be a permission problem. gpg is trying to access a directory that it can't have access to, so it fails with a fatal error. (error code 2)

You can fix that by specifying a homedir directive with a directory writable by gpg. Like this:

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

Information from man gpg:

   --homedir directory
   Set the name of the home directory to directory

    If this option is not used it defaults to "~/.gnupg". It does not make sense to    use     this in a options file. This also overrides the environment variable $GNUPGHOME.

You can also use this link to know more about this one.

Hope this helps you .

Largely used GPF codes are of three types :

1. 0 is success (all other values indicate a failure).
2. 2 is usually used for unxpected errors.
3. 1 for things like a BAD signature.

The proper way to identify an error is by interpreting the output of --status-fd.

Now for the particular Question that you are using, there might be two reasons :

1. GPG is asking whether you want to continue on with the encryption using an unsigned key. Since no user can input Y it produces an error.

To fix this provide the following switches :

    --yes and --always-trust

2. It may also be a permission problem. gpg is trying to access a directory that it can't have access to, so it fails with a fatal error. (error code 2)

You can fix that by specifying a homedir directive with a directory writable by gpg. Like this:

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

Information from man gpg:

   --homedir directory
   Set the name of the home directory to directory

    If this option is not used it defaults to "~/.gnupg". It does not make sense to    use     this in a options file. This also overrides the environment variable $GNUPGHOME.

You can also use this link to know more about this one.

Hope this helps you .