Commenting Out/Uncommenting a Line in Ubuntu Configuration File

The Short Answer. You can “uncomment a line” in a configuration file by removing the # at the start of the line. Or, to “comment out” a line, add a # character to the start of the line. (Note that some languages have different comment formats, so this may not be true if you're working with a source code file.)

1. How do I comment out a line in Ubuntu?
2. How do I comment multiple lines in conf?
3. How do you comment lines in properties file?
4. How do I comment out a specific line in Linux?
5. How do you comment out a line in Unix?
6. How do I comment multiple lines in Yaml?
7. How do you comment multiple lines?
8. How do you comment multiple lines in shell script?
9. How do I comment all lines in Vim?
10. What are the file properties?
11. What are the three properties of files?
12. How do I read properties file?

How do I comment out a line in Ubuntu?

Follow the steps given below for commenting multiple using the terminal.

1. First, press ESC.
2. Go to the line from which you want to start commenting. ...
3. use the down arrow to select multiple lines that you want to comment.
4. Now, press SHIFT + I to enable insert mode.
5. Press # and it will add a comment to the first line.

How do I comment multiple lines in conf?

Enter visual mode by pressing v. select the lines you like to comment ( up / down arrow or j / k ) enter :s/^/# / which translates to: in selection ( : ) replace beginning of line ( ^ ) with `# '

How do you comment lines in properties file?

Comment lines in . properties files are denoted by the number sign (#) or the exclamation mark (!) as the first non blank character, in which all remaining text on that line is ignored. The backwards slash is used to escape a character.

How do I comment out a specific line in Linux?

1. add the -e argument for macOS and BSD – Jonas Drotleff Feb 25 '17 at 10:55.
2. To avoid commenting multiple times and taking into account multiple leading # , use the following commands: sed -i '/<pattern>/s/^#*/#/g' file (to comment out) and sed -i '/<pattern>/s/^#*//g' file (to uncomment) – Louis M May 2 '17 at 11:46.

How do you comment out a line in Unix?

You can comment by placing a octothorpe # or a : (colon) at the start of the line, and then your comment. # can also go after some code on a line to add a comment on the same line as the code.

How do I comment multiple lines in Yaml?

The shortcut key combination for commenting YAML blocks is Ctrl+Q.

How do you comment multiple lines?

To block comment /* */ code:

1. In the C/C++ editor, select multiple line(s) of code to comment out.
2. To comment out multiple code lines right-click and select Source > Add Block Comment. ( CTRL+SHIFT+/ )
3. To uncomment multiple code lines right-click and select Source > Remove Block Comment. ( CTRL+SHIFT+\ )

How do you comment multiple lines in shell script?

For multiline comment use the following syntax:

1. #!/usr/bin/env bash # my comment 1 # my comment 2 # my comment N.
2. #!/bin/bash echo "Say Something" <<COMMENT1 your comment 1 comment 2 blah COMMENT1 echo "Do something else"

How do I comment all lines in Vim?

To comment out blocks in vim:

1. press Esc (to leave editing or other mode)
2. hit ctrl + v (visual block mode)
3. use the ↑ / ↓ arrow keys to select lines you want (it won't highlight everything - it's OK!)
4. Shift + i (capital I)
5. insert the text you want, e.g. %
6. press Esc Esc.

What are the file properties?

The file properties window shows you information like the type of file, the size of the file, and when you last modified it. If you need this information often, you can have it displayed in list view columns or icon captions.

What are the three properties of files?

Files typically have the following characteristics:

• A file always has a name.
• A file always takes up storage space.
• A file is always saved in a certain format: a body of text is saved in one of the many text file formats, a photo in one of the many image file formats, etc.

How do I read properties file?

Test.java

1. import java.util.*;
2. import java.io.*;
3. public class Test
4. public static void main(String[] args)throws Exception
5. FileReader reader=new FileReader("db.properties");
6. Properties p=new Properties();
7. p.load(reader);
8. System.out.println(p.getProperty("user"));