grep command to find keyword from file
# cat test
192.168.0.1
192.168.0.2
192.168.0.3
Syntax: grep “pattern” file_name
# grep "192.168.0.1" test
192.168.0.1
Awk command to find keyword from file
Syntax: awk '/pattern/' file_name
# awk '/192.168.0.3/' test
192.168.0.3
Find Multiple keyword from file
# awk '/192.168.0.3|192.168.0.1/' test
192.168.0.1
192.168.0.3