Q5
Which command is used to change protection mode of files starting with the string emp and ending with 1,2, or 3?
A.
chmod u+x emp[1-3]
AnswerB.
chmod 777 emp*
C.
chmod u+r ??? emp
D.
chmod 222 emp?
E.
None of the above
Answer: Option A
Solution
Answer: Option A
Solution:
In Unix, the chmod command is used to change the permissions or protection mode of files or directories. The pattern emp[1-3] matches files starting with the string emp and ending with 1, 2, or 3.By adding u+x to the chmod command, it grants execute permission to the owner of the file.
So, chmod u+x emp[1-3] is the correct command to change the protection mode of files starting with the string emp and ending with 1, 2, or 3.