Problem: How to clone a disk to another?
#dd if=/dev/had of=/dev/hdb
Explanation: Here had is the source and hdb is the destination.( had is connected to the primary master and hdb is connected to the primary slave) the destination disk capacity should be equel or greater than the source HDD.
Problem: How to show the disk quota of a user
#quota will return the quota for the user root
Disk quotas for user root (uid 0): none
Problem: How to edit the quota of a user
#edquota –u <user name>
Problem: How to print a file
Explanation: lpr handbook will send the file named handbook to connected printer
Problem: How to the view the current print queue for a printer
lpq will return the current print queue status for the printer on the host
Problem: How to cancel print job
Explanation: lprm cancel the current print job from the queue if no other filename or printer is define in the command.