Chapter 11 Flashcards
What is tee command
Tee is a Linux and Unix command for writing STDIN to STDOUT
What unlink do
It unlink FIFO
What is demon
It is such a background process which has 2 characteristics
- It runs system
- It provides service
e. g. http demon to browse any website, FTP demon, printer demon
What is ‘ps’ command
Its a process management command. It displays status of process.
What is ‘top’ command
Its a process management command. It display CPU usage of processes.
What is ‘bg’ command
Put a process in a background
What is ‘fb’ command
Put a process in foreground
What is ‘jobs’ command
Displays status of all jobs
what ‘Ctrl-Z’ do
Stop a process
What ‘Ctrl-C’ do
Send SIGINT signal to foreground process so kernel terminate it
What ‘kill’ command do
Terminate any type process
What is ‘init’ process
It is top level process with PID ‘1’
What is ‘cron’ process
It runs jobs on background
