tmpfs in Linux

In Linux, tmpfs resides in the main memory, giving fast file access and update times. tmpfs is explained with example commands.

October 3, 2018

htop command in Linux

htop is a ncurses based program for viewing processes in a Linux system. htop gives information about processor, memory and swap usage.

September 29, 2018

The sar command gives information about CPU, I/O, paging, devices, memory, swap space, network, run queue, interrupts and power management.

September 25, 2018

The pidstat command gives the CPU utilization, I/O statistics, page faults and memory utilization for processes and threads in Linux systems.

September 25, 2018

vmstat prints information about system processes, memory, swap, I/O blocks, interrupts and context switches and the CPU activity.

September 25, 2018

The free command can be used to find the free and used memory in a Linux system. The free command is explained with an example.

September 25, 2018