How to Comment Multiple Lines in Vi

Aug 4 2023

1. select the first caracter of your block
2. press Ctrl+V ( this is rectangular visual selection mode)
3. type j for each line more you want to be commented
4. type Shift-i (like I for “insert at start”)
5. type // (or # or " or …)
6. you will see the modification appearing only on the first line
7. IMPORTANT LAST STEP: type Esc key, and there you see the added character appear on all lines

• data-science
• linux
• vim