CheatSheet

Introduction to lscpu command lscpu is a command-line utility to display information about the CPU architecture. It reads the CPU architecture information from sysfs and /proc/cpuinfo files and prints in the terminal. The information includes

Introduction to lshw command lshw is a command-line tool to extract detailed information on the hardware configuration of the machine. It can report exact memory configuration, firmware version, mainboard configuration, CPU version and speed, cache

Introduction to tee command in Linux tee command reads from standard input (stdin) and writes to standard output (stdout) and files. tee is mainly used with other commands through piping.   Syntax to use tee

Introduction to ipcs command ipcs provides information on ipc facilities. ipc stands for Interprocess communication. It allows processes to communicate with each other. ipcs displays the information about message queues, shared memory segments, and semaphore

Introduction to lsof command lsof means list open files, thus it provides a list of files that are opened by processes in the Linux system. It does not list only regular files. An open file

Introduction to vmstat command vmstat command in Linux system is used to report information about processes, memory, paging, block IO, traps, and CPU activity. The first report produced gives average statistics since the last reboot.

Introduction to sar command sar is the short form for System Activity Report. sar collects, reports, or saves system activity information like CPU utilization, memory usage, I/O devices usage in the Linux system. sar command

Introduction to iostat command iostat is a command-line utility in a Linux system to monitor CPU statistics and input/output statistics for devices, partitions, and network filesystems (NFS). It monitors system input/output device loading by observing

Introduction to paste command paste command is used to merge lines of files in the Linux system. It prints the corresponding lines from each file sequentially. Each line is separated by TABS and parallel to