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Basic Unix Commands Quiz
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Which command is used to make all files and sub-directories in the directory (progs) executable by all users?
AnswerClick to flip back
A
chmod -R a+x progs
💡 Explanation:
chmod -R a+x progs makes all files and subdirectories (-R for recursive) executable for all users (a+x = all users + execute). chmod -R 222 would give write-only, not execute. chmod -1 is invalid syntax (should be -R). The command in A is the correct way to recursively set execute permissions.