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+# doas
+# Execute commands as another user
+
+# Remove the folder of "/home/user" as user
+# If the -u option is not specified, the command will be executed as root
+doas -u user ls /home/user
+
+# Show the contents of "/etc/shadow" as root
+doas cat /etc/shadow
+
+# Execute the shell defined in $SHELL as root
+doas -s
+
+# Permission to execute commands as another user are given in the config file "/etc/doas.conf"
+# The following line grants permission for every user in the wheel group to execute commands as root
+#
+#       permit persist keepenv :wheel
+#
+# Where the option "persist" makes doas only ask for the password once in each shell session
+# Where the colon specifies that "wheel" is a group, not a user
+# And where the option "keepenv" keeps the current environment variables
+#
+# The following line rejects permission for "user" to run commands as anon,
+# if the user is not specified, it will default to root
+#
+#       deny user as anon
+#
+# The following line allows "user" to execute only the program "shutdown" as root,
+# without asking for a password
+#
+#       permit nopass user cmd shutdown