added reading_writing.md

master
simon 5 years ago
parent 04618b8554
commit ae8fc6cd4c

@ -6,9 +6,9 @@ On the surface of it, a library is a place for reading.
Unix-like systems use three permissions;
1. *executable*
2. *read*
3. *write*
1. *read*
2. *write*
3. *execute*
## writing

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