How do I collapse long runs of blank lines to a single empty line?
:%s/\n\{3,}/\r\r/g
When files pass through formatters, generators, or repeated edits, they often accumulate noisy vertical gaps.
Tag: cleanup
How do I find trailing whitespace while skipping completely blank lines in Vim?
/\S\zs\s\+$
A plain trailing-whitespace search like /\s\+$ also matches fully blank lines, which is noisy when you only want accidental spaces after real content.
How do I close all tabs and buffers except the current one?
:tabonly | %bdelete | edit #
When your Vim session becomes cluttered with many tabs and buffers, you can clean up by closing all tabs except the current one with :tabonly, then deleting all
How do you record a macro to remove trailing whitespace from lines?
qa:s/\s\+$//e\n jq
Record a macro that runs a substitution on the current line to remove trailing spaces, then moves down.
How do you record a macro to clean log file lines by removing timestamps?
qa0d2Wjq
Record a macro that goes to the start of the line, deletes the first two words (timestamp fields), then moves down.