Question

Let me explain better. What is gonna happen if I run a command in Linux and before it’s done and you could enter another command I close the terminal. Would it still do the command or not?

Answer 1

Generally, you must expect that closing your terminal will hangup your command. But fear not! Linux has a solution for that too!

To ensure that your command completes, use the nohup argument first. Simply place it before whatever you are trying to do:

nohup ./some_program
nohup ./do_a_thing -frx -file input_file.txt
nohup grep "something" giant_list_of_files/* > temp_file.txt

The nohup command stands for “no hangup” and it will ensure that the command you execute continues to run, even if you close your terminal.