Set the ownership and permission for a file using chown and chmod command, If you want to Clone ownership and permissions from another file.

Can see the serial or model number of your hard disks from the terminal, the below commands are get information lshw, lsblk, hdparm, smartctl, palimpsest.

Assume that you want to find and replace a specific word in a file can use SED command.

UUIDs is very helpful to known as identifier for block devices in Linux and its represented by 32 hexadecimal digits probably 128 bit long numbers,

By default the bc command installed in your system, if you could not found the command we can easily install it.

Wget utility used for download files from the web, It support protocols like, HTTP, HTTPS, FTP. The wget installed in build Linux / Unix and Mac operating system.

vnStat is a network traffic monitor for specific interface like eth0, eth1...