Linux - Study Mode
[#331] What does the following command do? who | wc –l
Correct Answer
(A) List the number of users logged in
[#332] Which one of the following is a read-write semaphore in linux that protects all ksets and kobjects included in the filesystem?
Correct Answer
(A) rwsem
[#333] The command "awk '{if ("9">"10") print "demo" else print "linux"}'"
Correct Answer
(C) will generate syntax error
[#334] Which statement instructs gawk to stop processing the current data file?
Correct Answer
(B) nextfile
[#335] sed is a command typically used for
Correct Answer
(C) Modify/print selective contents of a file