Using enchant to spell check on the command line

Spell check is a common operation on all text files. All the editors come with built in spell checkers. But if we want to run a spell chec...Read more »

Finding trignometric inverse in gcalctool in linux

Most linux distros come with gcalctool as the default calculator. It is not obvious on first look as how to find the inverse of trignometric...Read more »

Seperating pdf into single pages using pdfseperate in linux

pdfseperate: A tool than can be used to split a pdf document into individual pages or can be used to extract a set of pages as individual pa...Read more »

Enabling and disabling touchpad clicks in gnome3 (debian 7)

The mouse clicks on touchpad of the mouse on the laptops can be enabled or disabled in gnome3 as required as shown below. Click on the Ac...Read more »

Motherboard details from commad line

We can find out all the details about the motherboard in our system from the command line using the command lshw. For example: lshw -cla...Read more »

Using grep to search in reverse

Grep ,which is used to search for a string or a pattern in the input,always starts searching from the beginning of the file. But if we wante...Read more »

Answers to Linux Command quiz 1

Here are the answers to linux command quiz -1 1. Which option with the command rm is required to remove a directory Ans: "-r...Read more »

Clearing the history of commands.

In the post " Deleting a command from the history " we saw how to delete command from the history of commands. But what if we w...Read more »

"cp: omitting directory" error in linux

This is a common error a number of newbies in Linux might face when using the command " cp " to copy a directory. cp: omitting di...Read more »

Keeping track of running time of script

if we want to track the time a script takes to run, we can make use of the inbuilt BASH variable SECONDS. The value of SECONDS is always t...Read more »

Finding the string length in scripting

Here are three scripts for finding the length of string using scripting 1. Using bash string operation #!/bin/bash echo "Enter the s...Read more »

Highlighting the output of grep

grep is used for searchin for a string or a pattern in a given input stream. By default the grep ouputs the whole line in which the search s...Read more »

Launching a GUI window as root (superuser)

To launch an GUI window as root, we can use the command gksudo. for e.g. if we want to open the nautilus file browser as root then ...Read more »

Grabing or moving a window using keyboard

Some times the terminal window or other GUI windows move to uncomfortable positions, from where we are unable to grab the title bar using th...Read more »

Finding out the amount of RAM being used

To find out the amount of RAM and swap space being used by all the processes in the system we can use the command free for e.g. free: ...Read more »

ejectiing a cdrom from the command line

The cd/dvd drive, which is usually ejected by pressing the button on the drive can also be controlled from the command line. The command to...Read more »

bash: ifconfig: command not found

bash: ifconfig: command not found This is a very common error which lot of us might have encountered for commands like ifconfig,insmod,modp...Read more »

Displaying the commands being run by make.

Make files are used to compile multiple source files and to generate executable from the source code. If we want to check what are the f...Read more »

Creating a triangle of characters in the terminal

Here is a script that crates a triangle of what ever character we choose. The triangle gets created right at the center in the terminal. ...Read more »

pgrep: grep of processes

pgrep searches in the currently running processes for processes that match the search criterion passed as the argument. For e.g. If we wa...Read more »