vars.sh

#!/bin/bash

( set -o posix ; set ) > vars

sed -i '/BASHOPTS/d' vars
sed -i '/BASH_VERSINFO/d' vars
sed -i '/EUID/d' vars
sed -i '/PPID/d' vars
sed -i '/SHELLOPTS/d' vars
sed -i '/UID/d' vars
sed -i '/BASH_ARGC/d' vars
sed -i '/BASH_ARGV/d' vars
sed -i '/BASH_LINENO/d' vars
sed -i '/BASH_SOURCE/d' vars
sed -i '/IFS/d' vars

cat vars

for i in $(cat vars | cut -d '=' -f 1); do unset $i; done

echo done

env

source vars

env