Linux Interview Questions

1. What can you type at a command line to determine which shell you are using? $ echo $SHELL 2. What command is used to remove the password assigned to a group? $ gpasswd -r. 3. What are LVM1 and LVM2? LVM1 and LVM2 are the versions of LVM. LVM2 uses device mapper driver contained in 2.6 kernel version. LVM 1 was included in the 2.4 series kernels. 4. What command should you use to

LVM – Logical Volume Manager

Logical Volume Manager Many of sys admins uses logical volume manager to manage file system on their servers,  So let’s discuss, this concept, that what is lvm, why do we use lvm , why lvm is so useful. To understand this concept let’s assume a situation where you are managing an application or database machine and this application is regularly generating a large amount of data. Now being a sysadmin, it’s a threat for you