Why does the command prompt showing this following error? : <p>I just installed the GCC compiler and wanted to test if it is working correctly. But in the middle, I am facing this issue with the command prompt as shown in the figure. 'ls' ie., List command is not working what might be the problem??</p>

<p>Regards,<a href="https://i.stack.imgur.com/Jd8OR.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Jd8OR.png" alt="enter image description here"></a></p>
