Which command is used to make all files and sub-directories in the dir – McqOptions

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1.	Which command is used to make all files and sub-directories in the directory (prog) executable by all users?
A.	chmod R a+xprogs
B.	chmod x a+xprogs
C.	chmod -1 a+xprogs
D.	chmod R 222 progs
Answer» B. chmod x a+xprogs

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