UGC NET CSE | December 2015 | Part 3 | Question: 56

Question

In Unix, the command to enable execution permission for file "mylife" by all is_____

• A. Chmod ugo $+$ X mylife
• B. Chmod a $+$ X mylife
• C. Chmod $+$ X mylife
• D. All of the above

Answer 1

ans is D 

all three commands are used to enable execution permission chmod (change mode) X for execution

ugo (user group other) and + for add

a(all) and + for add

only + for all

refer https://kb.iu.edu/d/abdb