Tip 27: Meet Vim's Command Line

Ex Commands That Operate on the Text in a Buffer

Command	Effect
`:[range]delete [x]`	Delete specified lines [into register x]
`:[range]yank [x]`	Yank specified lines [into register x]
`:[line]put [x]`	Put the text from register x after the specified line
`:[range]copy {address}`	Copy the specified lines to below the line specified by {address}
`:[range]move {address}`	Move the specified lines to below the line specified by {address}
`:[range]join`	Join the specified lines
`:[range]normal {commands}`	Execute Normal mode {commands} on each specified line
`:[range]substitute/{pattern}/{string}/[flags]`	Replace occurrences of {pattern} with {string} on each specified lines
`:[range]global/{pattern}/[cmd]`	Execute the Ex command [cmd] on all specified lines where the {pattern} matches

# If you open the file in vim,
# then you can \"ayy@a the next line to execute the vim command: 
:h ex-c`md-index