user/gpg_encrypt_batch.sh

   1 #!/bin/bash
   2 # Desc: Encrypts a batch of files in the current working directory according to a find pattern.
   3 # Usage: gpg_encrypt_batch.sh [PATH key] [PATTERN]
   4 # Example: gpg_encrypt_batch.sh "/tmp/key.txt" "*.tar.xz"
   5 # Depends: Bash 5.1.16, gpg (GnuPG) 2.2.27, libgcrypt 1.9.4
   6 # Version: 0.0.1
   7
   8 PATH_KEY="$1"; # symmetric encryption passphrase is first line of this file
   9 FIND_PATTERN="$2"; # adjust me (e.g. "*.tar.xz")
  10
  11 passphrase="$(head -n1 "$PATH_KEY")"; # first line
  12
  13 while read -r line; do
  14     printf "STATUS:Beginning encryption of:%s\n" "$line"; sleep 1;
  15     time gpg --symmetric --no-symkey-cache \
  16          --passphrase "$passphrase" \
  17          --pinentry-mode loopback \
  18          --cipher-algo AES256 --no-armor \
  19          --batch --yes \
  20          --output "$line".gpg \
  21          "$line" && \
  22         printf "STATUS:Finished encrypting:%s\n" "$line" 1>&2 &
  23 done < <(find . -maxdepth 1 -type f -name "$FIND_PATTERN" | sort);