ultim8k/vim-multiline-comment.md

Thanks for sharing this info.

The above instruction comments out only 1 line at a time. Which you could just do by simply Shift + "I" for insert and then add # in front of the line.
I tried both your mentioned methods inc : s/^/# both just comment 1 line. If you also could provide solution for multiple line comment, that would be very helpful.

This worked for me

:%s/^/#/g

The above instruction comments out only 1 line at a time. Which you could just do by simply Shift + "I" for insert and then add # in front of the line. I tried both your mentioned methods inc : s/^/# both just comment 1 line. If you also could provide solution for multiple line comment, that would be very helpful.

One has to make sure to press Esc after inserting the # and that will add all the other #'s after the first line.

I just copy-pasted the solution from stack overflow for future reference. I remember it worked for me at the time.

How to uncomment now?

How to uncomment now?

Select the same way as before and then press x to delete the selected characters.

Thanks a lot, now I can flex more while using vim.

The above instruction comments out only 1 line at a time. Which you could just do by simply Shift + "I" for insert and then add # in front of the line. I tried both your mentioned methods inc : s/^/# both just comment 1 line. If you also could provide solution for multiple line comment, that would be very helpful.

@Pari-singh, are you certain that you are using Ctrl-v and not just Shift-v? I myself misread that part, and out of muscle memory used Shift-v. On re-reading, I realised my mistake. Shift-v (i.e. V) is VISUAL LINE mode while Ctrl-v is VISUAL BLOCK mode.

This worked for me

:%s/^/#/g

@cwwaism what if you just want a few lines rather than entire file? Visual blocks easier than line numbers.

@jahooker why do you need capital I? lower case i does not seem to work?

@jahooker why do you need capital I? lower case i does not seem to work?

Not sure, @sureshvv.
That's just how Vim works.
See https://stackoverflow.com/questions/12399572/vim-how-to-insert-in-visual-block-mode and https://vim.fandom.com/wiki/Inserting_text_in_multiple_lines.

@jahooker why do you need capital I? lower case i does not seem to work?

Its because in block selection mode, your selection might be, for example: 7 lines long by 3 columns wide. That makes it ambiguous where vi should place the cursor for inserting.

Shift-I means place the cursor on the left hand side of the block selection
Shift-A means place the cursor on the right hand side of the block selection

These commands of course come from Normal mode, where they mean:-
Shift-I Move to the start of the line and enter insert mode
Shift-A Move to the end of the line and enter insert mode