凡所有相，皆是虚妄。若见诸相非相，则见如来。All that has a form is illusive and unreal. When you see that all forms are illusive and unreal, then you will begin to perceive your true Buddha nature.
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ls example_doc.* | grep -v *.tex | xargs rm
grep -v carries out the inverse matching.
sudo fdisk -l