Which command is used to make all files and sub-directories in the directory (progs) executable by all users ?
Correct answer: A. chmod -R a+x progs
- A. chmod -R a+x progs
- B. chmod -R 222 progs
- C. chmod -1 a+x progs
- D. chmod -x a+x progs
Explanation
The `-R` option applies the change recursively, while `a+x` adds execute permission for the owner, group, and others. The other numeric mode shown does not specifically assign executable permission.
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