How do you comment on Linux?
Commenting Multiple Lines
- First, press ESC.
- Go to the line from which you want to start commenting. …
- use the down arrow to select multiple lines that you want to comment.
- Now, press SHIFT + I to enable insert mode.
- Press # and it will add a comment to the first line.
How do you comment out a block of code in Linux?
You start your editor, navigate down to the beginning row of the block you want to comment out. You hit i to go into insert mode, enter // to comment, hit ESC to go back to command mode, hit j to navigate down to the next row, and then repeat until all the rows are commented out.
How do I comment out a script in Linux?
Comments can be added at the beginning on the line or inline with other code:
- # This is a Bash comment. …
- # if [[ $VAR -gt 10 ]]; then # echo “Variable is greater than 10.” # fi.
- # This is the first line. …
- << ‘MULTILINE-COMMENT’ Everything inside the HereDoc body is a multiline comment MULTILINE-COMMENT.
How do you comment out code?
Commenting out code
- In the C/C++ editor, select multiple line(s) of code to comment out.
- 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 in Unix?
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 you comment out a block of code in Shell?
In Shell or Bash shell, we can comment on multiple lines using << and name of comment. we start a comment block with << and name anything to the block and wherever we want to stop the comment, we will simply type the name of the comment.
How do you comment out a block of code in Python?
To comment out a block of code in IDLE, we have to first select the line and then press the key combination ctrl+D. This will comment out the selected lines of code as shown below. To uncomment the lines of code, we just have to select the lines and then press ctrl+shift+d . This will uncomment the selected lines.
How do I comment out a VIM code?
To comment out a single line in Vim, enter Visual Mode by pressing Ctrl + V . Next, navigate to the line you wish to comment out and press the C key. Depending on your Vim configuration, this should comment out the selected line. That’s all there is to it – easy, isn’t it?
How do I comment in config file?
To enter comments in a configuration file, use a comment character and enter the comment text anywhere to the right of the comment character on the same line. Valid comment characters are a semicolon (;), a pound sign (#), or two hyphens (–).
How do you comment a line in crontab?
Use a comment mark (#) at the beginning of a line to indicate a comment or a blank line.