Self-elevating a script to root permissions
Trick to elevate a script to root permissions
FeedbackBy Preston Hunt, 05 November 2011
I don't know why it took me so long to figure this out, but here is a nice little recipe for elevating a script to root permissions from inside the script.

#!/usr/bin/env bash

if (( UID != 0 )); then echo Re-running as root exec sudo -E "$0" ${1+"$@"} fi

echo Script is running as root echo Here are my arguments: for i in "$@"; do echo arg=[$i]; done id

If you don't want to export the user's environment variables, replace "sudo -E" with "sudo".

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