If your process calls a function that creates a kernel object and then your process terminates, the kernel object is not necessarily destroyed. Under most circumstances, the object will be destroyed; but if another process is using the kernel object your process created, the kernel knows not to destroy the object until the other process has stopped using it
Which command executes 'command' in place of the current process instead of creating a new process? a) exec b) command c) trap d) none of the mentioned
Which command generates possible completions for string according to the and write it to standard output? a) compgen b) complete c) continue d) none of the mentioned
Which option of the command 'cd' use the actual filesystem path for cd.. and the value of pwd? a) -l b) -L c) -p d) -P
Fc stands for a) find command b) fix command c) both (a) and (b) d) none of the mentioned
Which command is used to re-execute the previous command? a) !! b) !cat c) !3 d) !$
Which one of the following is not correct about job control in bash shell? a) it is the ability to stop and resume any process running in shell at a later point b) user employs this facility via an interactive interface supplied by the kernel's terminal driver and bash c) it is the ability to create any process d) none of the mentioned
Which command allows to view the current jobs being handled by the shell? a) jobs b) view c) show d) none of the mentioned
What is job number? a) same as PID b) a unique number, assigned to each job in shell c) both (a) and (b) d) none of the mentioned
Ctrl-Z key combination a) generates a SIGINT signal b) stops the process running in the shell c) kills the process running in the shell d) both (a) and (c)
Which command brings a background job into the foreground? a) fg b) bg c) jobs %1 d) none of the mentioned
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