177. Linux command

linuxcommand

su root Switch to root

useradd user1 Create user

userdel aaa Delete user

groupad kaifa add group

groupmod -n kaifazu kaifa Modify group name

groupdel kaifazu Delete the group

gpasswd -a user3 kaifazu Add users to groups

grep 'kaifazu' /etc/group Find users in groups

logname The current user

top Display process change information q Introduction

top -c Display full process information

ps Displays the information that the current process is running

kill  pid Kill process

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