permission list by emoken

s/^/0000/
:
h
s/7/rwx/g
s/6/rw-/g
s/5/r-x/g
s/4/r--/g
s/3/-wx/g
s/2/-w-/g
s/1/--x/g
s/0/---/g
s/../ is /
x
G
s/\n//p
s/ .*//
/777/Q
h
y/01234567/12345670/
x
G
s/[^7]7*\n.*\([^0]0*\)/\1/
b

Note that non-ascii characters in the above source code will be escaped (such as \x9f).

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