$ gpasswd -r
If you are talking about deleting a group under Linux, then open the terminal and type grpdel [groupname] and hit enter. The group will be deleted.
There are LINUX-based programs that can remove a local account password for any Windows-based PC. These are generally available for download for free or at a nominal cost. These generally do not reveal what the password WAS; they simply remove the password, allowing you to set any password you want. None of these applications will remove network passwords.
You click forgot password and they send your password to your email
The password would be whatever the root password is set to.
This is impossible to fully answer. Password hashes are "salted" in Linux. This means, among other things, that the stored value for the same password can vary significantly.
Run the command "passwd". You will have to enter your old password to change it. If you are root, you will not have to enter the old password to change a user's password.
passwd username
Try "root" as the username and "uClinux" as the password.
You can't recover passwords in Linux; you can only reset the passwords on various accounts.
There are many ways to "lock" a computer. If there is a boot password at the BIOS level, you may not be able to remove it without knowing the password. If there is a BIOS password, you may be able to remove it by either clearing the BIOS or by using a utility CD such as Hiren's Boot CD or Ultimate Boot CD. If you use a bootloader such as GRUB that has a password embedded in it, you can most likely overwrite it with a new bootloader using a Linux live CD. If your operating system (Windows, Mac, Linux, etc) has a password on the user account, you will either need to contact your system administrator or reinstall your operating system. If you are not comfortable editing critical parts of your computer, take your computer to a professional.
getent group <groupname>
how do you remove the password of card in pc