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#!/bin/sh
#
# Copyright (c) 2015,2018 Aaron LI
#
# Encrypt a file using GPG with symmetric AES256 algorithm.
#
case "$1" in
""|-h|--help)
echo "usage: ${0##*/} <infile>"
exit 1
;;
esac
if which gpg2 >/dev/null 2>&1; then
GPG=gpg2
elif which gpg >/dev/null 2>&1; then
GPG=gpg
else
echo "ERROR: cannot find gpg/gpg2!"
exit 2
fi
infile="$1"
outfile="${infile}.gpg"
${GPG} --symmetric --cipher-algo aes256 -o "${outfile}" "${infile}"
chmod 0600 "${outfile}"
echo "Encrypted file saved to: ${outfile}"
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