多文件查询是指在多个文件内查询同一字段。命令 :vimgrep：

:vim[grep][!] /{pattern}/[g][j] {file}

For example，递归当前目录及子目录，在所有 py 文件中查询 main，\C 区分大小写，\c 不区分大小写。

:vimgrep /\Cmain/ **/*.py

These commands all fill a list with the results of their search. “grep” and “vimgrep” fill the “quickfix list”, which can be opened with :cw or :copen, and is a list shared between ALL windows.via Find in files within Vim