3A Character Education

Victoria School Character Education Committee

Commands in Linux are just the keys to explore and close the Linux. As you can do things manually by simple clicking over the programs just like windows to open an applications. But if you don't have any idea about commands of Linux and definitely you also don't know about the Linux terminal. You cannot explore Linux deeply. Because terminal is the brain of the Linux and you can do everything by using Linux terminal in any Linux distribution. So, if you wanna work over the Linux distro then you should know about the commands as well. In this blog you will exactly get the content about Linux hardware commands which are related to CPU and memory processes.

dmesg

The dmesg command is used in Linux distribution for the sake of detecting hardware and boot messages in the Linux system.

cat /proc/cpuinfo

The cat command is basically used to read something over the terminal like cat index.py will display all the content which exist in index.py over the terminal. So cat /proc/cpuinfo will display the model of the CPU over the terminal.

cat /proc/meminfo

This command is similar to the above command but the only difference is that this command shows the information of hardware memory over the terminal. Because it will open the memory info file over the terminal.

cat /proc/interrupts

This command is also similar to the above command but there is the difference of one thing that this command will display lists the number of interrupts per CPU per input output device.

lshw

This command is used in Linux operating system to displays information on hardware configuration of the system in Linux.

lsblk

The "lsblk" command is used in Linux operating system to displays block device related information in the Linux operating system.

dmidecode

The "dmidecode" command is used in Linux distributions to display the information about hardware from the BIOS.

hdparm -i /dev/sda

The hdparm command basically used to display the information about the disks available in the system. If you wanna know the information about the "sda" disk so just type "hdparm -i /dev/sda" and if you wanna know the information about "sdb" so just type "hdparm -i /dev/sdb".

hdparm -tT

The "hdparm" command is used for displaying the information about disks as we discussed in above command. If you wanna do a read speed test on the disk sda or sdb just type the command "hdparm -tT /dev/sda".

badblocks -s /dev/sda

This command is used in linux to display test operations for unreadable blocks on disk sda. If the command is like "badblocks -s /dev/sdb" it will display test operations for unreadable blocks on disk sdb.Read more