Bash Shell Scripting - "nohup" Command

The video tutorial explains the nohup command, which allows users to run other commands in the background, detached from the terminal. It demonstrates using nohup with a dummy script that outputs messages and numbers in a loop. The tutorial shows how nohup redirects output to a file, nohup.out, and how to manage processes using nohup. It also covers redirecting output to a custom file and demonstrates the persistence of processes even after logging out of the terminal.

What is the primary function of the nohup command?

• To terminate running processes

• To execute commands with elevated privileges

• To run commands in the background and redirect output

• To schedule commands for later execution

In the dummy script demonstration, what does the script primarily do?

• It calculates mathematical operations

• It displays backup messages and counts numbers

• It sends emails to a list of users

• It monitors system performance

How does nohup handle output when a script is run?

• It redirects output to nohup.out by default

• It discards the output

• It sends output to the system log

• It sends output to the terminal

What happens to a nohup process if the terminal is closed?

• The process continues running

• The process stops immediately

• The process restarts automatically

• The process sends an alert to the user

What is the significance of using '&' with nohup?

• It terminates the command after execution

• It runs the command with root privileges

• It logs the command execution time

• It sends the command to the background

How can you redirect nohup output to a custom file?

• By using the 'nohup' command without any options

• By using the 'nohup' command with the '-o' option

• By using the '>' operator followed by the filename

• By specifying the filename in the nohup configuration

What is the default file created by nohup for output?

• nohup.txt

• nohup.data

• nohup.out

• nohup.log