vim

I have just started using Vim for writing small scripts while doing CTFs so this will have things that I am learning with time.

  • duplicate a line: :t.

  • Copy paste are simple:

    • Shift+CTRL+C - copy

    • Shift+CTRL+V - paste

  • quit

    • :qa!

  • visual mode:

    • v to get into visual mode - this is just for characters

    • V - this is for line mode

    • Ctrl+v - Visual block mode

    • Use arrow keys to select the text.

      • Shift+$ - to completely select the word.

    • Y - yank(copy)

    • d - delete

    • p - paste

    • u - undo

  • :s/,/\r/g

    • Break on comma

  • :set number

    • Show line number

To Select and comment multiple lines

  • Select the first caracter of your block

  • press Ctrl+V ( this is rectangular visual selection mode)

  • type j for each line more you want to be commented

  • type Shift-i (like I for "insert at start")

  • type // (or # or " or ...)

  • You will see the modification appearing only on the first line

  • IMPORTANT LAST STEP: type Esc key, and there you see the added character appear on all lines