The latest articles on DEV Community by Aakriti (@aakriti_1012). https://dev.to/aakriti_1012 https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F417464%2F2ec5a8af-3cd8-4a33-85bf-65ca7f22416c.jpg https://dev.to/aakriti_1012 en Aakriti Sun, 18 Jul 2021 17:46:05 +0000 https://dev.to/aakriti_1012/linux-echo-4glh https://dev.to/aakriti_1012/linux-echo-4glh <h1> echo </h1> <ul> <li>Write output to standard input</li> </ul> <div class="table-wrapper-paragraph"><table> <thead> <tr> <th>Option</th> <th>Usage</th> <th>Example</th> </tr> </thead> <tbody> <tr> <td><code>-n</code></td> <td>Do not appened to a new line. The terminal curser will be in the same line as the output instead of being in a new line by default .</td> <td> <code>[aaakriti@aakriti ~]$ echo -n "Harry Potter"</code> <br> <code>Harry Potter[aaakriti@aakriti ~]$ write your next command here</code> </td> </tr> <tr> <td><code>-e</code></td> <td>enables interpretation of <code>\</code> backslash escapes</td> <td>Will be used in combination of <code>\</code> options</td> </tr> <tr> <td><code>-E</code></td> <td>Opposite of <code>-e</code>. Explicitly supress interpretation of backslash escapes</td> <td>Will be used in combination of <code>\</code> options</td> </tr> <tr> <td><code>\a</code></td> <td>Alert through Volume. Make sure your volume is high. It will ring a <em>ting</em> on an output</td> <td> <code>[aaakriti@aakriti ~]$ echo -e "\aHarry Potter"</code> <br> <code>Harry Potter</code> </td> </tr> <tr> <td><code>\b</code></td> <td>Backspace, removes all spaces between the texts</td> <td> <code>[aaakriti@aakriti ~]$ echo -e "Harry \bPotter"</code> <br> <code>HarryPotter</code> </td> </tr> <tr> <td><code>\b</code></td> <td>It removes the n no. of character occurring before the <code>\b</code> used. Depending on the no. pf times used</td> <td> <code>[aaakriti@aakriti ~]$ echo -e "Harry\b\bPotter"</code> <br> <code>HarPotter</code> </td> </tr> <tr> <td><code>\c</code></td> <td>Suppress further output. Will not output whatever is written after <code>\c</code> </td> <td> <code>[aaakriti@aakriti ~]$ echo -e "Harry \c Potter is my favourite"</code> <br> <code>Harry</code> </td> </tr> <tr> <td><code>\e</code></td> <td>Escape character. Omits the just next single character succeeding to <code>\e</code> </td> <td> <code>[aaakriti@aakriti ~]$ echo -e "\eHarry"</code> <br> <code>arry</code> </td> </tr> <tr> <td><code>\n</code></td> <td>Creates a new line</td> <td> <code>[aaakriti@aakriti ~]$ echo -e "Harry \nPotter \nis \nmy \nfavourite"</code> <br> <code>Harry</code> <br> <code>Potter</code> <br> <code>is</code> <br> <code>my</code> <br> <code>favourite</code> </td> </tr> <tr> <td><code>\r</code></td> <td>Carriage return. Will not return whatever is return before <code>\r</code>. opposite of <code>\c</code> </td> <td> <code>[aaakriti@aakriti ~]$ echo -e "Harry \r Potter is my favourite"</code> <br> <code>Potter is my favourite</code> </td> </tr> <tr> <td><code>\t</code></td> <td>Horizontal tabs. Use tabs as spaces.</td> <td><img src="https://res.cloudinary.com/practicaldev/image/fetch/s--N2pipVuH--/c_limit%2Cf_auto%2Cfl_progressive%2Cq_auto%2Cw_880/https://github.com/Aakriti94/articles/blob/master/linux-commands/Images/echo-t.jpg" alt="Example"></td> </tr> <tr> <td><code>\v</code></td> <td>Vertical tab space. In a slanting manner</td> <td><img src="https://res.cloudinary.com/practicaldev/image/fetch/s--kUbVpnL0--/c_limit%2Cf_auto%2Cfl_progressive%2Cq_auto%2Cw_880/https://github.com/Aakriti94/articles/blob/master/linux-commands/Images/echo-v.jpg" alt="Example"></td> </tr> </tbody> </table></div> <h2> Other tricks </h2> <div class="table-wrapper-paragraph"><table> <thead> <tr> <th>Option</th> <th>Usage</th> </tr> </thead> <tbody> <tr> <td><code>echo *</code></td> <td>Lists all files and folders</td> </tr> <tr> <td><code>echo $x</code></td> <td>echo value of a variable</td> </tr> <tr> <td><code>\n + \t</code></td> <td>new line + tab</td> </tr> <tr> <td><code>\n + \v</code></td> <td>new line + verticle tab</td> </tr> <tr> <td><code>echo "Test" &gt; testpage.log</code></td> <td>will add contents to a file</td> </tr> <tr> <td>1. <code>echo 'Harry "Potter"'</code> <br> 2. <code>echo "Harry \"Potter\""</code> </td> <td><code>Harry "Potter"</code></td> </tr> <tr> <td><code>echo $(command)</code></td> <td>Output of the command</td> </tr> <tr> <td><code>echo ~</code></td> <td>home folder</td> </tr> <tr> <td><code>echo {1..5}</code></td> <td><code>1 2 3 4 5</code></td> </tr> <tr> <td><code>echo $((50*2))</code></td> <td><code>100</code></td> </tr> <tr> <td>1. <code>echo -e "\033[1;37mWHITE"</code> <br> 2. <code>echo -e "\033[0;34mBLUE"</code> </td> <td>Display in respective colors</td> </tr> </tbody> </table></div> <h2> Fun tricks </h2> <ul> <li>Make someone get lost in dark black world of linux: <code>echo -e "\033[0;30mBLACK"</code> {"mode":"full","isActive":false}</li> </ul> linux bash