Tool of the day

These are the tool of the days discussed in the Debian group.

1 Like

:dizzy: Tool of the day : htop

About: htop is a simple but very useful tool to understand whats currently happening on your computer. In other words its a task manager. You can sort processes by memory or CPU. You can also see the child and parent processes and even send a SIGKILL to kill the process.

1 Like

TOOL of the day : chmod

This tool is used to change/give the permissions like read,write,excicution
Of a file or a directory.

Eg: chmod 777 /home/swecha/Download/develop.txt

1 Like

Tool name:- maybe

Maybe is a small tool that allows you to run a command to see what it does to your filesystem without actually letting it do anything. It will show you a list of operations that was supposed to be performed by that command and then you can decide whether you want to permit those operations or not.

1 Like

:bulb: Tool of the Day : hdparm

hdparm provides a command line interface to various kernel interfaces supported by the Linux SATA/PATA/SAS libata subsystem and the older IDE driver subsystem

So we can use hdparm to set/remove the READ ONLY tag of the USB drive.

Usage # hdparm -r0 /dev/sdb

ToolofTheDay - byobu(text window manager, shell multiplexer, integrated DevOps environment)

apt install byobu

Command of the day : MAN

This is a tool that is very much useful to know about a specific command i.e what and how is it used…

Eg: man chmod

tasksel - an user interface for installing tasks

apt install tasksel

1 Like

evince - GNOME document viewer

apt install evince

cmake - CMake Command-Line Reference

apt install cmake

Tool of the Day: iw - a tool to configure wireless

Example usage iw dev lists out the wireless devices.

iw dev wl01 scan

will scan the device wl01 for available networks.

More details at

Tool of The day :sparkles:


Print the user name associated with the current effective user ID.


Print information about users who are currently logged in.

Tool of the Day: xrandr - list supported display sizes and set the display device and resolution.

Usage of xrandr - Lists the display sizes available.

you can count from 0 and set the display resolution to say 1024X768 by typing

xrandr -s 2

Command of the Day: $history gives the list of commands typed before.

Usage : Simple usage can be to search for previous packages installed.

history | grep apt
should tell us the previously used apt command.

To expand on the above example you might want to know how many times in your history you have used apt. :wink:

history | grep apt | wc -l

wc -l counts the number of lines. It uses wordcount command wc.

BC tool of the day

Tool of the day: chkservice



The chgrp (from change group) command be used by users on systems to change the group associated with a file system object (such as a file, directory, or link) to one of which they are a member. A file system object has 3 sets of access permissions, one set for the owner, one set for the group and one set for others. Changing the group of an object could be used to change which users can write to a file.


chgrp [options] group FSO

Command of the day : PING

PING (Packet INternet Groper) command is the best way to test connectivity between two nodes. Whether it is Local Area Network (LAN) or Wide Area Network (WAN). Ping use ICMP (Internet Control Message Protocol) to communicate to other devices. You can ping host name of ip address using below command.

Syntax: ping <url/ip address>