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241ec63a9a
These might not be issues yet, but they make the script more fragile. Also by fixing them we give a better example to future readers, who might copy/paste or otherwise re-use snippets from our script. - Use "read -r", since we don't ever want read to be interpreting '\' characters as escape sequences... - Quote variables, to deal with spaces properly. - Use $() instead of the older and harder-to-nest ``. - Get rid of superfluous "$" prefixes inside arithmetic $(()). Link: https://lkml.kernel.org/r/20220421224928.1848230-2-axelrasmussen@google.com Signed-off-by: Axel Rasmussen <axelrasmussen@google.com> Cc: Shuah Khan <shuah@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>