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- #!/bin/sh
- set -ex
- lower="${1:-/}"
- mount="$2"
- if [ -z "$mount" ]; then
- mount="$lower"
- fi
- upper="${lower}/upper"
- work="${lower}/work"
- mkdir -p "$lower" "$upper" "$work" "$mount"
- touch "${lower}/asdf" "${upper}/qwer"
- mount -t overlay -o lowerdir="$lower",upperdir="$upper",workdir="$work" none "$mount"
- ls "$lower" "$upper"
- umount "$mount"
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