Explains how to reset Urchin to prompt for a new serial key under Linux / UNIX / BSD operating systems.
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root user
If you are a proud owner of IBM / Lenovo laptop / desktop computer use vpddecode command to print the “vital product data” information without opening your case or rebooting the system. This information is hardcoded on almost all IBM and Lenovo computers BIOS. It will show following information: => BIOS Build ID => Box [...]
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Sometime it is necessary to find out if a shell script is being run as root user or not. When user account created a user ID is assigned to each user. BASH shell stores the user ID in $UID variable. Your effective user ID is stored in $EUID variable. You can Old way… You can [...]
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I was writing and testing few python scripts (yes I’m moving lot of stuff from shell / perl to python these days) and accidentally I renamed my own user account from vivek to test. However, I did not noticed change until I rebooted my box. Now I cannot run sudo (or become a root user) [...]
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With FreeBSD version 5.4 and above the booting procedure is slightly changed. The older version of FreeBSD uses the boot -s option at Ok prompt. However, with FreeBSD version FreeBSD 5.4+ you don’t have to type any commands. Here is the procedure to boot FreeBSD into a single user mode to reset root password.
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