![]() The installation of many Linux distributions prepackages it as a system utility. This utility is flexible and scriptable in generating unique password phrases. The last candidate on the list of this article’s random password generators is xkcdpass. Method 10: Linux password generation with xkcdpass ![]() The approach is ideal enough to specify the password length you wish outputted via a command argument. In my case, I saved the Perl file on the Desktop folder of my Linux OS and then opened the command-line or terminal from there, making it easy to access and execute the file. ![]() Since the Perl script’s execution is from the terminal, make sure you are in the same directory as the Perl file before you run the execution command. As the apg approach generates six password instances at a single command execution, makepasswd can generate more password phrase options and also specify the character length of these password phrases. Its command string accommodates the use of an integer argument to specify the number of password phrase outcomes you wish to generate. Using makepasswd is simple and even more flexible than the apg approach. $ sudo apt install makepasswd $ sudo pacman -S makepasswd $ sudo yum install makepasswdĪs you have noticed, you will also need to be a Sudoer user to be granted the execution permissions of installing this package. For the Debian-based, Arch-based, and RPM-based Linux systems, respectively, the makepasswd installation command is straightforward. You first need to install it to use this utility since it is not inbuilt like most of the approaches we have covered. It is a unique approach to generating many passwords at once without the need for running a single command over and over again to get the desired number of password phrases. You can choose to go with either of the generated phrases, or you can use them all in your various password requirements. $ apg -a 1Īs you can see, the output has unraveled six unique options. Time to be more practical with this apg password-generation approach. The varying output options will have a length of 8-10 unique random characters. Generating these random password phrase options is as easy as running the command string apg -a 1. From these options, you will select a phrase that best works for you as a password. It takes a random input and generates a variance of password phrase options. Using this utility is easy, and its approach is different from the other password-generation mechanisms we have handled so far. This tool is prepackaged with the OS or installed during the OS installation on an Ubuntu Linux system. APG is another effective tool for automating the generation of unique password phrases on a Linux environment. Now that we have some idea of how to bypass prompts using echo, we can implement this in our script instead of providing the password to the useradd command: The output from the echo command is piped to the passwd command, which we used to change the password for newuser.Each password is separated by the “\n” character, so they are treated as three separate standard inputs.We echo the current password followed by the new and confirmed password.The -n flag disables printing the trailing newline.We enabled the escape sequence characters support for the echo command through the -e flag.Let’s see it in action: $ echo -en "strongpassword\nnewpass\nnewpass\n" | passwd newuser Therefore, we can easily automate tasks that involve prompts either in a shell script or in the Linux terminal. We can also pipe echo with other commands to bypass prompts and confirmation messages. The echo command is a utility that takes input from the standard input and prints it to the standard output. For that reason, we’ll make use of the echo command alongside passwd to skip the interactive prompt. Let’s change the password for the newuser that we just created: $ passwd newuserĪs we can see, the passwd command presents us with an interactive prompt. It takes a username as an argument and presents an interactive prompt for password modification. The passwd command creates or changes the password for an existing user account.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |