Can't export variables within script

I've been trying to setup a borg automated backup script following the documentation. For some reason my script fails to see its variables while I'm trying to write to a sudo protected encrypted drive. For example, something like this works as the script as the script doesn't ask me a password again. #!/bin/sh DATE=$(date --iso-8601)-$(hostname) TARGET=~/Documents/borg export BORG_PASSPHRASE="whatever" borg init --encryption=repokey $TARGET borg create $TARGET::$DATE-$$ ~/Desktop/TestFolder/1 However when I mount an external FDE implemented drive, it ignores the exported password and and weirdly enough the "repokey" encryption mode. #!/bin/sh DATE=$(date --iso-8601)-$(hostname) TARGET=~/X/borg export BORG_PASSPHRASE="whatever" sudo borg init --encryption=repokey $TARGET sudo borg create $BORG_OPTS $TARGET::$DATE-$$ ~/Desktop/TestFolder/1 I'm fairly new to Linux so this is probably an easy fix but I couldn't do it on my own when I referred to other answers. Please help.