vimgrep

:vimgrep /pattern/[g][j] file1 file2 ... fileN

vimgrep is using to search pattern from following filelist.

vimgrep accept to ignore case,

If want to using this feature, put /\c in the pattern to ignore case.

ex:  vimgrep /pattern\c/ filename

or put /\C in the pattern to match it.

ex:  vimgrep /PaTtErn\c/ filename

Without flag 'j', vim jumps to the first match.

With flag 'j', vim only quickfix list is updated.

You can using :clist to list all match location.

and using :cc N to jump to the match.

:cn can jump to the next match location.

:cN can jump back prior match.

more usage, please using :help vimgrep