Base64 multi-encoding/decoding script

bx

#!/bin/bash
# Source this file
# The output length follows an expotential sequence, the same as the computation time
function bex { outstr=$1; incount=$2; while [[ ! incount -eq 0 ]]; do outstr=$(echo "$outstr" | base64 -w0); (( incount-- )); done; echo $outstr; }
function bdx { outstr=$1; incount=$2; while [[ ! incount -eq 0 ]]; do outstr=$(echo "$outstr" | base64 -d); (( incount-- )); done; echo $outstr; }