In Linux, we use "sudo" to run a command as administrator (e.g., sudo xxx_command).
If you want not to type "sudo" every time, create sudo user or get temporary sudo permission.
(1) create new sudo user
sudo useradd -m k -G adminin detail,
sudo = run "useradd" command as administrator
useradd = command for adding a new user
-m = create home directory for the user
k = account name
-G = set up a group
admin = group name
(2) change current user to sudo user
run "sudo gedit /etc/group"
find something like "admin:x:123:k" where k is current user name
find something like "admin:x:123:k" where k is current user name
add ",sj" to change the user to sudo user, e.g., admin:x:123:k,sj
(3) get temporary sudo permission
(3) get temporary sudo permission
run "sudo passwd root" to set up password for root (skip this if root account already has password)
run "su -" or "su root", and enter the password
run "su -" or "su root", and enter the password
now command prompt changes from $ to # and current account is temporarily sudo user
this sudo permission will be gone when the command terminal/shell is closed.
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