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#!/bin/sh -x set -e mkdir 1 2 echo asdf >1/file1 echo asdf >1/file2 ln 1/file1 2/file1 ln 1/file2 2/file2 mkdir 2/.snap/s1 echo qwer >1/file1 grep asdf 2/.snap/s1/file1 rm -f 1/file2 grep asdf 2/.snap/s1/file2 rm -f 2/file2 grep asdf 2/.snap/s1/file2 rmdir 2/.snap/s1 rm -rf 1 2 echo OK