Set or Change User Password
Type passwd command as follows to change your own password:
$ passwd
Output:
Changing password for vivek
(current) UNIX password:
Enter new UNIX password:
Retype new UNIX password:
passwd: password updated successfully
The user is first prompted for his/her old password, if one is present. This password is then encrypted and compared against the stored password. The user has only one chance to enter the correct password. The super user is permitted to bypass this step so that forgotten passwords may be changed.
A new password is tested for complexity. As a general guideline, passwords should consist of 6 to 8 characters including one or more from each of following sets:
- Lower case alphabetics
- Upper case alphabetics
- Digits 0 thru 9
- Punctuation marks
Task: Change Password For Other User Account
You must login as root user, type the following command to change password for user vivek:
# passwd vivek
Output:
Enter new UNIX password:
Retype new UNIX password:
passwd: password updated successfully
Where,
- vivek - is username or account name.
YOU SHUD REMEMBER THE MAIN STEP AFTER PERFORMING ALL OPERATIONS: /* After changing your password, use the following commands to reboot your system. (The sync command makes sure to write out data to the disk before rebooting)/*sync
reboot –f