In vim
:g/George Bush/d
deletes all lines with George Bush.
What if I wanted to delete 5 lines below that start with George Bush?
Another realistic example would be to find all DEBUG in a log4net log and delete up to the end of stack trace (which I know will be another 10 lines below it)
If you want to delete all the lines before the current line, then use “:1,-1d“. For example, if you want to delete lines from line number 5 to all lines before this lines, then use the following method: Bring your cursor to line number 5. Press the “Esc” key and type “:1,-1d”, and then press “Enter”.
The :global command is your friend - learn it well. It lets you run arbitrary :ex commands on every line that matches a regex. It abbreviates to :g.
To delete all lines that match "George Bush":
:g/George Bush/ d
The command that follows can have its own address/range prefix, which will be relative to the matched line. So to delete the 5th line after George Bush:
:g/George Bush/ .+5 d
To delete the DEBUG log entries:
:g/DEBUG/ .,+10 d
If you knew the stack trace was variable length but always ended at a blank line (or other regex):
:g/DEBUG/ .,/^$/ d
You can also execute a command on every line that does NOT match with :g!. e.g. to replace "Bush" with "Obama" on every line that does not contain the word "sucks":
:g!/sucks/ s/Bush/Obama/
The default command is to print the line to the message window. e.g. to list every line marked TODO:
:g/TODO
This is also useful for checking the regex matches the lines you expect before you do something destructive.
You can chain multiple commands using "|". e.g. to change Bush to Obama AND George to Barack on every line that does not contain "sucks":
:g!/sucks/ s/Bush/Obama/g | s/George/Barack/g
If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
Donate Us With