Vi / VIM: Find And Replace All Text Substitute Command

Vim: Search and replace syntax

The syntax is as follows:

:s/Search/Replace/CommandFlag
:s/Search-Word/Replace-Word/g
:%s/Search-Word/Replace-Word/g
:%s/Search-Word/Replace-Word/gc

Examples Text

-A INPUT -m state --state ESTABLISHED,RELATED -j ACCEPT

## full acess to lo and eth0 ##
-A INPUT -i lo -j ACCEPT
-A OUTPUT -o lo -j ACCEPT
-A INPUT -i eth0 -j ACCEPT
-A OUTPUT -o eth0 -j ACCEPT

# log spoof
-A INPUT -i eth1 -s 10.0.0.0/8 -j LOG --log-prefix "IP DROP SPOOF A: "
-A INPUT -i eth1 -s 10.0.0.0/8 -j DROP

-A INPUT -i eth1 -s 172.16.0.0/12 -j LOG --log-prefix "IP DROP SPOOF B: "
-A INPUT -i eth1 -s 172.16.0.0/12 -j DROP

To find each occurrence of

eth0

in the current line only, and replace it with

br0

, enter (first press

Esc

key and type):

:s/eth0/br0/g

To find and replace all occurrences of

eth1

with

br1

, enter:

:%s/eth1/br1/g

To find and replace all occurrences of

eth1

with

br1

, but ask for confirmation first, enter:

:%s/eth1/br1/gc

To find and replace all occurrences of case insensitive

eth1

with

br1

, enter:

:%s/eth1/br1/gi

The above example will find

eth1

,

ETH1

,

eTh1

,

ETh1

and so on and replace with

br1

.

To find and replace all occurrences of

eth1

with

br1

for lines from 3 to 7, enter:

:3,7s/eth1/br1/g

A quick demo