what is nohup in unix what does the ampersand sign in UNIX do
nohup command [arguments]. You may optionally add an ampersand to the end of the command line to run the job in the background: nohup command [arguments] &. If you do not redirect output from a process kicked off with nohup, both standard output (stdout) and standard error (stderr) are sent to a file named nohup.out.