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linux commands

Collectl is a powerful tool to monitor system resources on Linux

Monitoring system resources Linux system admins often need to monitor system resources like cpu, memory, disk, network etc to make sure that the system is in a good condition. And there are plenty of commands like iotop, top, free, htop, sar etc to do the task. Today we shall take a look at a tool called collectl that can be used ...

Nmon – A nifty little tool to monitor system resources on Linux

Nmon Nmon (Nigel's performance Monitor for Linux) is another very useful command line utility that can display information about various system resources like cpu, memory, disk, network etc. It was developed at IBM and later released open source. It is available for most common architectures like x86, ARM and platforms like linux, unix etc. It is interactive and the output is well ...

Inxi is an amazing tool to check hardware information on Linux

Inxi A very common thing linux users struggle with is to find what hardware has the OS detected and how well. Because unless the OS is aware of the hardware, it might not be using it at all. And there an entire ocean of commands to check hardware information. There are quite a few gui tools like hardinfo, sysinfo etc on the ...

10 basic examples of Linux ps command

Linux ps command The ps command on linux is one of the most basic commands for viewing the processes running on the system. It provides a snapshot of the current processes along with detailed information like user id, cpu usage, memory usage, command name etc. It does not display data in real time like top or htop commands. But even though ...

5 commands to check memory usage on Linux

Memory Usage On linux, there are commands for almost everything, because the gui might not be always available. When working on servers only shell access is available and everything has to be done from these commands. So today we shall be checking the commands that can be used to check memory usage on a linux system. Memory include RAM and swap. It ...

Linux mail command examples – send mails from command line

Send mails from command-line Being able to send emails from command-line from a server is quite useful when you need to generate emails programatically from shell scripts or web applications for example. This tutorial explains, how to use to the mail command on linux to send mails from the command-line using the mail command. How the mail command works For those who are curious ...

25 simple examples of Linux find command

Linux find command The Linux find command is a very useful and handy command to search for files from the command line. It can be used to find files based on various search criterias like permissions, user ownership, modification date/time, size etc. In this post we shall learn to use the find command along with various options that it supports. The ...

5 Linux commands to shutdown and reboot the system

Linux shutdown / reboot command On Linux, like all tasks, the shutdown and restart operations can also be done from the command line. The commands are shutdown, halt, poweroff, reboot and REISUB keystrokes. In this post I am going to show you how to shutdown or restart a linux system using these commands. The commands are useful specially when you have to ...

Check disk space usage on linux with Ncdu

Ncdu - Ncurses du Ncdu is a command line tool to view and analyse disk space usage on linux. It can drill down into directories and report space used by individual directories. This way it is very easy to track down space consuming files/directories. It actually allows the user to do this much faster than even a gui file manager. On ...

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