Linux - sudo

sudo

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sudo file

Sudo is a program that allows users to run programs, on behalf of another user, typically, the super user or root.

sudo file: specifies how sudo access is granted for a given user.

visudo   # a privilege process

#
# This file MUST be edited with the 'visudo' command as root.
#
# Please consider adding local content in /etc/sudoers.d/ instead of
# directly modifying this file.
#
# See the man page for details on how to write a sudoers file.
#
Defaults        env_reset
Defaults        mail_badpass
Defaults        secure_path="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/s$

# Host alias specification

# User alias specification

# Cmnd alias specification

# User privilege specification
# usrname, host=(the usrname can be), commands can be run
root    ALL=(ALL:ALL) ALL
bob ALL=(ALL:ALL) ALL              # use [TAB]
hanbin  ALL=NOPASSWD: /sbin/fdisk  # no ask passwd for access this file

# Members of the admin group may gain root privileges
%admin ALL=(ALL) ALL

# Allow members of group sudo to execute any command
%sudo   ALL=(ALL:ALL) ALL

# See sudoers(5) for more information on "#include" directives:

#includedir /etc/sudoers.d


control+O, save it

show all the sudo commands typed

sudo tail -3 /var/log/secure

.