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User administration

ow do I create a user account under UNIX operating system and assign a password to user account so that he / she can login into server or UNIX workstation?:

You need to user the useradd command under UNIX operating systems to create user account and password command to set a password for the same. You need to login as root user to add users. Usually, /etc/passwd, /etc/group and /etc/shadow or /etc/master.passwd files are required for user account management.

Add A User Called Tom Under UNIX

Create / add a user called tom with home directory, enter:

# useradd -m tom
Setup A Password:

Type the following command:

# passwd tom

Make sure password must be 8 character long and include special characters and digits for security.

How Do I Add User Jerry To A Secondary Group Called Sales?:

Type the following command:

# useradd -G sales -m jerry
# passwd jerry
How Do I Add /bin/ksh as A Shell While Creating A User Account?:

Use the following syntax:.

useradd -m -s /bin/ksh -d /path/to/home/user username

You can pass all those options as follows:.

There is only one argument or option available for the command: .r, for removing the account's home directory and mail file.

# useradd -d /nas/users/v/vivek -m -s /bin/bash -c "Vivek Gite" vivek
# passwd vivek
Further readings:

See useradd and passwd command man page:.

man useradd
man passwd
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