Bash Here documents and here strings Run several commands with sudo
Example
sudo -s <<EOF
a='var'
echo 'Running serveral commands with sudo'
mktemp -d
echo "\$a"
EOF
$aneeds to be escaped to prevent it to be expanded by the current shell
Or
sudo -s <<'EOF'
a='var'
echo 'Running serveral commands with sudo'
mktemp -d
echo "$a"
EOF
