how-to
linux
almalinux

almalinux

create temporary file

$ mktemp
/tmp/tmp.UHHyLzjCB0

change hostname

# change hostname between restarts
sudo hostnamectl set-hostname [HOST]
# change the hostname, before the restart
sudo hostnamectl --transient set-hostname [HOST]
# change the hostname on hosts file
sudo vim /etc/hosts