Vim Find replacement

: s/str1/str2/Replacement Current Line the first str1 is str2

: S/str1/str2/g replaces all str1 in the current line as str2

: M,ns/str1/str2/replaces the first str1 of each row in the beginning of the nth row to the last row str2
: M,ns/str1/str2/g replaces the nth line start to the last row in all str1 as str2
(Note: M and n are numbers, if M is., which is the beginning of the current line; If n is $, the end of the last line)

If # is used as a delimiter, the middle/not as a delimiter , for example:
: s#str1/#str2/# Replace the current row the first str1/is str2/
:%s+/oradata/apras/+/user01/apras1+ (use + to replace/):/oradata/apras/Replace with/user01/apras1/

:. -5,.+5s/^/\/\//g add 6 lines to the first 5 lines of the current line

: g/\/\//d Delete////after////For processing, if/j is to link the line.

Vim Find replacement