Unix - Study Mode

[#481] Which option is used with pr command to display output along with line numbers?
Correct Answer

(B) -n

[#482] What does the following command do? cp -u * dir_file
Correct Answer

(D) update all files in the current working directory and copy newer ones to directory dir_file

[#483] There are . . . . . . . . modes of opening a file.
Correct Answer

(B) 3

[#484] Which of the following is not a content of inode?
Correct Answer

(D) file name

[#485] Which symbol is used to append an existing file?
Correct Answer

(C) >>