Colin's git trees - cmccabe-bin/blob - dec.sh

   1 #!/usr/bin/env bash
   2
   3 die() {
   4     echo $@
   5     exit 1
   6 }
   7
   8 [ "x${PASS}" = "x" ] && die "you must set PASS to the password"
   9
  10 RET=0
  11 for FILE in "$@"; do
  12     if [[ "${FILE}" = *.nc ]]; then
  13         BASE_FILE="$(dirname ${FILE})/$(basename ${FILE} .nc)"
  14         if [ -e "${BASE_FILE}" ]; then
  15             echo "Not decrypting $FILE because there is already a ${BASE_FILE}"
  16         else
  17             if openssl enc -d -aes-256-ecb \
  18                     -k "$PASS" < "${FILE}" > "${BASE_FILE}"; then
  19                 echo "Created ${BASE_FILE}"
  20             else
  21                 echo "Failed to create ${BASE_FILE}"
  22                 RET=1
  23             fi
  24         fi
  25     else
  26         echo "Not decrypting $FILE because its name does not end in .nc"
  27     fi
  28 done
  29 exit $RET