Linux Makefile Question:

If you are a root user, how can you grand execute permission only for the owner of the file project1?
a. chmod +x project1
b. chmod u+x project1
c. chmod a+x project1
d. chmod U+X project1

Answer:

b. chmod u+x project1

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Which command is used to assign read-write permission to the owner?
a) chmod a+r file
b) chmod o+r file
c) chmod u=rw file
d) chmod og-r file

A user executes the following command successfully:
$ chmod +x file1.txt
Which of the following is true of the output of this command?
a) The command results in adding execute permission to the user who ran this command
b) The command results in adding execute permission for the owner of the file
c) The command results in an error since the file is not an executable file
d) The command results in adding execute permission for all users (i.e., user,group & others)