``` In ./src/test/fuzz/fixup_filenames.sh line 11: prev=`basename "$fn"` ^--------------^ SC2006: Use $(...) notation instead of legacy backticked `...`. In ./src/test/fuzz/fixup_filenames.sh line 12: post=`sha256sum "$fn" | sed -e 's/ .*//;'` ^-- SC2006: Use $(...) notation instead of legacy backticked `...`. In ./src/test/fuzz/fixup_filenames.sh line 13: if [ "$prev" == "$post" ] ; then ^-- SC2039: In POSIX sh, == in place of = is undefined. For more information: https://www.shellcheck.net/wiki/SC2039 -- In POSIX sh, == in place of = is ... https://www.shellcheck.net/wiki/SC2006 -- Use $(...) notation instead of le... ```