Vim string occurrence count (Word frequency)

Command:%S/PATTERN//GN

Parameter description

%-operating interval, full text; You can use 1, $, or line interval overrides

S-substitute

Pattern-Query string

-No alternative text. If you prefer, you can add any character in the middle! Suggest adding ' ~ ' to repeat last query

G-replace all occurrences on the line. Without this argument, replacement occurs is only for the first occurrence on each line. Therefore, if this flag is not used, it becomes the number of rows that are counted as the pattern appears.

N-report the number of matches, do not actually substitute. This is the core symbol, but also the mark to achieve the purpose. It also explains why you can add any character between '//'!

Use

Single Pattern word frequency statistics

Alternative Solutions

Script or high-level language parsing files

Vim string occurrence count (Word frequency)