How do you comment on Linux?

How do I comment out code in Linux?

Whenever you want to comment a line, put a # in an appropriate place in a file. Anything beginning after # and ending at the end of the line won’t get executed. This comments out the complete line.

How do you comment in a shell script?

A single-line comment starts with hashtag symbol with no white spaces (#) and lasts till the end of the line. If the comment exceeds one line then put a hashtag on the next line and continue the comment. The shell script is commented out prefixing # character for single-line comment.

How do I comment a line in a .sh file?

There are two different ways to use multi-line comment in Shell Scripts:

1. Method 1: Using <<comment: …
2. Output:
3. Method 2: Using : ‘ : …
4. Code: #!/bin/bash echo “Sample code” x=4 if [[ $x -le 10 ]];then echo “Less than 10″ fi : ‘ echo”This doesn’t echo” echo”Even this doesn’t” ‘ echo “OK, this is working with : ‘”
5. Output:

How do you add a comment 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 you comment multiple lines?

To comment out multiple code lines right-click and select Source > Add Block Comment. ( CTRL+SHIFT+/ ) To uncomment multiple code lines right-click and select Source > Remove Block Comment. ( CTRL+SHIFT+ )

How do you comment out code?

Comments can be added to single lines of code (Ctrl + /) or blocks of code (Ctrl + Shift + /). In addition, special PHPDocBlock comments can also be added. See “Adding PHP DocBlock Comments” for more information. The following procedures describe how to comment and uncomment lines and blocks of code.

How do you comment multiple lines in shell?

Commenting Multiple Lines

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 you comment on a script?

You can insert comments and remarks in the script code, or deactivate parts of the script code by using comment marks. All text on a line that follows to the right of // (two forward slashes) will be considered a comment and will not be executed when the script is run.

How do I run a shell script?

Steps to write and execute a script

1. Open the terminal. Go to the directory where you want to create your script.
2. Create a file with . sh extension.
3. Write the script in the file using an editor.
4. Make the script executable with command chmod +x <fileName>.
5. Run the script using ./<fileName>.

How do I comment out a line in bash?

Bash comments can only be done as single-line comment using the hash character # . Every line or word starting by the # sign cause all the following content to be ignored by the bash shell. This is the only way to do a bash comment and ensure text or code is absolutely not evaluated in Bash.

What is bin sh Linux?

/bin/sh is an executable representing the system shell and usually implemented as a symbolic link pointing to the executable for whichever shell is the system shell. The system shell is basically the default shell that the script should use.

How do you comment multiple lines in Python?

Let’s have a look at them!

1. Using multiple single # line comments. You can use # in Python to comment a single line: # THIS IS A SINGLE LINE COMMENT. …
2. Using triple-quoted string literals. Another way to add multiline comments is to use triple-quoted, multi-line strings.