docs:vim:search_and

Search and Replace

:%s/SEARCH/REPLACEMENT/g
- % - tells vim to search the entire file
- g - tells vim to replace all instances on each line, instead of just the first

.	any character except new line
\s	whitespace character
\S	non-whitespace character
\d	digit
\D	non-digit
\x	hex digit
\X	non-hex digit
\o	octal digit
\O	non-octal digit
\h	head of word character (a,b,c…z,A,B,C…Z and _)
\H	non-head of word character
\p	printable character
\P	like \p, but excluding digits
\w	word character
\W	non-word character
\a	alphabetic character
\A	non-alphabetic character
\l	lowercase character
\L	non-lowercase character
\u	uppercase character
\U	non-uppercase character

Search results can be replaced with special characters like this:

type :%s/SEARCH/
press CTRL-V (CTRL-Q on windows); you now have the option to:
- type the 3 digit decimal value for the character you want
- type x then the 2 character hex value you want
- type o then the 3 digit octal value you want
full example to replace all occurances of SEARCH with a vertical tab:
```
:%s/SEARCH/
(press CTRL-V or CTRL-Q)
(press the letter o)
013/g
```
once the replace is done, you can move the cursor over the character and type 'ga' to see the decimal, hex, and octal values