How to make VIM insensitive to uppercase and lowercase letters in a search?
Vim by default is case sensitive but this behavior can be modified through the options: ignorecase, ic, noignorecase, noic or adding c to the search pattern
Note: If you are in insert mode you must press Esc to switch to Normal mode
Case insentive temporarily
:set ignorecase
O
:set ic
Case sensitive
:set noignorecase
O
:set noic
Using c
/category\c
Find all words that contain category regardless of uppercase and lowercase letters
Case insensitive permanently
Edit the file /etc/vimrc (global) or ~/.vimrc (at the level of user) and add:
set ic
O
set ignorecase
Further reading
- man vim
- :help 'ignorecase', :help ignorecase
