Bash.md

Bash Usefull snippets

tcpdump

Capture 2000 packet from a interface ens3 with source ip 10.0.90.86 and write to capture2.pcap file

sudo tcpdump -A -s 0 -i ens3 -l -c 2000 -w capture2.pcap 'src 10.0.90.86'

grep

Find IP

egrep -o '\b([0-9]{1,3}\.){3}[0-9]{1,3}\b'