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Which command is used by the user to change their login password in UNIX?

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Which command is used by the user to change their login password in UNIX?

(a) man

(b) reset

(c) passwd

(d) cp

This question was posed to me in an interview for job.

Question is taken from General Purpose Commands topic in division The Unix Architecture & General Purpose Utilities of Unix

1 Answer

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Best answer
Right answer is (c) passwd

For explanation I would say: Since UNIX is a multiuser system, it requires a password from every user who wants to log in to the system to help ensure that all the data and files of the user are secure from hackers and errant users. A user can simply change his/her login password by using the passwd command. Simply type this command on the terminal and then enter the old password, which after successful verification would allow the user to input a new password for his login.

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