The sysctl command on Linux may be used to return information about your installed hardware; as well as virtual memory information. Below is an example looking at virtual memory information. zsh 7 % sysctl -a | grep vm sysctl: permission denied on key ‘kernel.cad_pid’ sysctl: permission denied on key ‘kernel.usermodehelper.bset’ sysctl: permission denied on key …

To check the battery status of your Linux laptop; use the acpi command. This will display the status of your laptop battery. exempli gratia. [email protected] ~$ acpi Battery 0: Disharging, 40%, 00:48:32 [email protected] ~$ acpi Battery 0: Disharging, 40%, 00:48:32 remaining. This command also has many other options. This one shows the CPU temperature. [email protected]

Viewing information about network connections and devices is easy with the netstat -a command. The -i parameter allows you to view the information about your network adapters, the transmitted and received packets and the number of transmitted and dropped packets. [email protected]:~$ netstat -i Kernel Interface table Iface MTU Met RX-OK RX-ERR RX-DRP RX-OVR TX-OK TX-ERR …

´╗┐The Linux shell offers many ways to compress files for backup. The tar or tape archive program will concantenate many files into one. tar –create –verbose myfile.tar file1 file2 file3 file4tar –create –verbose myfile.tar file1 file2 file3 file4 Then you may use either the gzip or bzip commands to compress the myfile.tar file you have …