Shulou(Shulou.com)06/01 Report--

This article is about how to use the sudo command in Linux. The editor thinks it is very practical, so share it with you as a reference and follow the editor to have a look.

The Linux common command sudo command is used to execute commands as other identities, and the default identity is root. The user who can execute the sudo instruction is set in / etc/sudoers.

Sudo executes orders in another capacity

Add that if their unauthorized users attempt to use sudo, a warning email will be sent to the administrator. When using sudo, users must enter the password first, followed by a validity period of 5 minutes, and must re-enter the password after the expiration of the period.

Syntax sudo (option) (parameter) option-b: execute instructions in the background;-E: inherit the current environment variable-h: display help;-H: set the HOME environment variable to the new identity HOME environment variable;-k: end the validity period of the password, that is, the next time you execute sudo, you will need to enter the password. -l: lists the instructions that can and cannot be executed by the current user;-p: changes the prompt symbol for asking for a password;-s: executes the specified shell;-u: with the specified user as the new identity. If this parameter is not added, root is used as the new identity by default;-v: the password validity period is extended by 5 minutes;-V: version information is displayed. Parameter instruction: the instruction to be run and the corresponding parameters.

Thank you for reading! This is the end of the article on "how to use sudo commands in Linux". I hope the above content can be of some help to you, so that you can learn more knowledge. if you think the article is good, you can share it for more people to see!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.