Month: February 2010

How to create Random password quickly in Linux? Some times when creating bulk users, admins are forced to create complex passwords. But how to do it? How many you can set manually? Let me put it in this way. For one or two users we can think for a random password and assign to them. But if it’s 100 users? Naaa.. I cannot think for 100 passwds. So leave this job to Linux to create random passwords. We can use below command to generate random passwords < /dev/urandom tr -dc A-Na-n1-9_ | head -c8 This will just generate random 8 lenght password For example : See just typing the above command will generate a random password root@ps6061:~# < /dev/urandom tr -dc A-Na-n1-9_ | head -c8 57fg67gK root@ps6061:~# < /dev/urandom tr -dc A-Na-n1-9_ | head -c8 FN8ahe8b root@ps6061:~# < /dev/urandom tr -dc A-Na-n1-9_ | head -c8 eLhLLNCG root@ps6061:~# < /dev/urandom tr -dc A-Na-n1-9_ | head -c8 FK3CC9GN root@ps6061:~# < /dev/urandom tr -dc A-Na-n1-9_ | head -c8 cA8H24Ml root@ps6061:~# < /dev/urandom tr -dc A-Na-n1-9_  | head -c8 9eDL39I_ root@ps6061:~# Here is a script automate entire 20 user account creation. #!/bin/bash #Author:Surendra Kumar Anne #Purpose:To automate user creation #Date/Time:29-01-2010.19:10 mkdir -p /home/admin/useraccounts for (( i=0; i<=20; i++ )) do useradd user$i< /dev/urandom tr -dc A-Na-n1-9_ | head -c8 > /tmp/passwd.txt cat /tmp/passwd.txt | passwd –stdin user$i echo -e “Username:user$i” > /home/admin/useraccounts/user$i echo -e “password:” >> /home/admin/useraccounts/user$i cat /tmp/passwd.txt...