use of --passphrase-fd in batch symmetric encryption

[Frank Heckenbach]

William Binkley wrote:

> 	I am apparently too dumb to figure this out -> I've tried reading the man 
> page, faq, and other docs at the gnupg site, to no useful avail. I can't seem 
> to figure out how to symmetrically encrypt a batch of files at once, using 
> the same passphrase, and entering the passphrase only once for the whole 
> batch. I tried the following (and I am no pearl programmer, beware):
> ==============================
> 
> #!/usr/bin/perl -w
> 
> open ( FILE  , '</home/cbinkle1/.gnupg/pass' ) or die "Can't find passfile\n";
> $j = fileno FILE;
> @files = glob "$ARGV[0]";
> $numberofelements = @files;
> for  ( $i = 0; $i <= $numberofelements - 1; $i++) {
> 	system ( "gpg --passphrase-fd $j -c $files[$i]" );
> }
> close  FILE;
> exit
> ===============================

I'm no perl programmer, either, so I don't know what's wrong with
your code. But it's quite easy to do with sh ...

#!/bin/sh
for file do
  gpg --passphrase-fd 3 -c "$file" 3< /home/cbinkle1/.gnupg/pass
done

Frank

-- 
Frank Heckenbach, frank@g-n-u.de
http://fjf.gnu.de/
PGP and GPG keys: http://fjf.gnu.de/plan