Knowing Your Linux System Via the Command Line

Check os version in Linux

1. Open the terminal application (bash shell)
2. For remote server login using the ssh: ssh user@server-name.
3. Type any one of the following command to find os name and version in Linux: cat /etc/os-release. lsb_release -a. hostnamectl.
4. Type the following command to find Linux kernel version: uname -r.

1. What is the command to check system information in Linux?
2. How do I find my system specs in Linux terminal?
3. How do I run system information from the command line?
4. How do you check which Linux is installed?
5. How do I check memory usage on Linux?
6. What is the command to check RAM in Linux?
7. How do I find CPU and memory information in Linux?
8. How do I list all USB devices in Linux?
9. How do I determine my IP address in Linux?
10. What is the command for system information?
11. How can I check my system performance using CMD?
12. How do I run a program from command prompt?

What is the command to check system information in Linux?

To know only system name, you can use uname command without any switch will print system information or uname -s command will print the kernel name of your system. To view your network hostname, use '-n' switch with uname command as shown. To get information about kernel-version, use '-v' switch.

How do I find my system specs in Linux terminal?

16 Commands to Check Hardware Information on Linux

1. lscpu. The lscpu command reports information about the cpu and processing units. ...
2. lshw - List Hardware. ...
3. hwinfo - Hardware Information. ...
4. lspci - List PCI. ...
5. lsscsi - List scsi devices. ...
6. lsusb - List usb buses and device details. ...
7. Inxi. ...
8. lsblk - List block devices.

How do I run system information from the command line?

Use the systeminfo command to get system information

Open Command Prompt or PowerShell, type systeminfo and press Enter. Do you see what's happening? The systeminfo command displays a list of details about your operating system, computer hardware and software components.

How do you check which Linux is installed?

Type the following command into the terminal and then press enter:

1. cat /etc/*release. mixed.
2. cat /etc/os-release. mixed.
3. lsb_release -d. mixed.
4. lsb_release -a. mixed.
5. apt-get -y install lsb-core. mixed.
6. uname -r. mixed.
7. uname -a. mixed.
8. apt-get -y install inxi. mixed.

How do I check memory usage on Linux?

Commands to Check Memory Use in Linux

1. cat Command to Show Linux Memory Information.
2. free Command to Display the Amount of Physical and Swap Memory.
3. vmstat Command to Report Virtual Memory Statistics.
4. top Command to Check Memory Use.
5. htop Command to Find Memory Load of Each Process.

What is the command to check RAM in Linux?

Linux

1. Open the command line.
2. Type the following command: grep MemTotal /proc/meminfo.
3. You should see something similar to the following as output: MemTotal: 4194304 kB.
4. This is your total available memory.

How do I find CPU and memory information in Linux?

9 Useful Commands to Get CPU Information on Linux

1. Get CPU Info Using cat Command. ...
2. lscpu Command – Shows CPU Architecture Info. ...
3. cpuid Command – Shows x86 CPU. ...
4. dmidecode Command – Shows Linux Hardware Info. ...
5. Inxi Tool – Shows Linux System Information. ...
6. lshw Tool – List Hardware Configuration. ...
7. hardinfo – Shows Hardware Info in GTK+ Window. ...
8. hwinfo – Shows Present Hardware Info.

How do I list all USB devices in Linux?

The widely used lsusb command can be used to list all the connected USB devices in Linux.

1. $ lsusb.
2. $ dmesg.
3. $ dmesg | less.
4. $ usb-devices.
5. $ lsblk.
6. $ sudo blkid.
7. $ sudo fdisk -l.

How do I determine my IP address in Linux?

The following commands will get you the private IP address of your interfaces:

1. ifconfig -a.
2. ip addr (ip a)
3. hostname -I | awk 'print $1'
4. ip route get 1.2. ...
5. (Fedora) Wifi-Settings→ click the setting icon next to the Wifi name that you are connected to → Ipv4 and Ipv6 both can be seen.
6. nmcli -p device show.

What is the command for system information?

Checking your Windows version using CMD

Press [Windows] key + [R] to open the “Run” dialog box. Enter cmd and click [OK] to open Windows Command Prompt. Type systeminfo in the command line and hit [Enter] to execute the command.

How can I check my system performance using CMD?

Launch Run window by pressing Windows Key + R, type cmd and press ctrl + shift + enter. 2. In the Command Prompt window, type 'winsat prepop' and hit enter. The command prompt will now run various tests to check the performance of your GPU, CPU, disk, etc.

How do I run a program from command prompt?

1. Open Command Prompt.
2. Type the name of the program you want to run. If its on the PATH System variable it will be executed. If not, you'll have to type the full path to the program. For example, to run D:\Any_Folder\any_program.exe type D:\Any_Folder\any_program.exe on the Command prompt and press Enter.