Linux: Most useful commands for Full Stack developers
When you are updating Ubuntu, sometimes appear errors like this:
E: The repository 'http://ppa.launchpad.net/armagetronad-dev/ppa/ubuntu bionic Release' does not have a Release file.You can solve with this:
sudo apt-add-repository -r ppa:armagetronad-dev/ppa
sudo apt update❯ sudo lsof -i -P -n | grep LISTEN
[sudo] password for herles:
systemd 1 root 57u IPv6 27176 0t0 TCP *:6600 (LISTEN)
systemd-r 741 systemd-resolve 13u IPv4 25968 0t0 TCP 127.0.0.53:53 (LISTEN)
cupsd 935 root 6u IPv6 26486 0t0 TCP [::1]:631 (LISTEN)
cupsd 935 root 7u IPv4 26487 0t0 TCP 127.0.0.1:631 (LISTEN)
mpd 971 mpd 4u IPv6 27176 0t0 TCP *:6600 (LISTEN)
anydesk 974 root 32u IPv4 36321 0t0 TCP *:7071 (LISTEN)
container 1020 root 7u IPv4 35414 0t0 TCP 127.0.0.1:36085 (LISTEN)
postgres 1058 postgres 3u IPv4 32197 0t0 TCP *:5432 (LISTEN)
postgres 1058 postgres 4u IPv6 32198 0t0 TCP *:5432 (LISTEN)
docker-pr 1647 root 4u IPv6 38758 0t0 TCP *:9069 (LISTEN)
docker-pr 1648 root 4u IPv6 32540 0t0 TCP *:6069 (LISTEN)
docker-pr 1677 root 4u IPv6 33571 0t0 TCP *:9068 (LISTEN)
docker-pr 1678 root 4u IPv6 37604 0t0 TCP *:6068 (LISTEN)
docker-pr 1697 root 4u IPv4 35808 0t0 TCP 127.0.0.1:3306 (LISTEN)
docker-pr 1710 root 4u IPv6 39282 0t0 TCP *:443 (LISTEN)
docker-pr 1725 root 4u IPv6 32583 0t0 TCP *:80 (LISTEN)
java 3606 herles 50u IPv6 48389 0t0 TCP 127.0.0.1:6942 (LISTEN)
java 3606 herles 319u IPv6 44815 0t0 TCP 127.0.0.1:39871 (LISTEN)
java 3606 herles 567u IPv6 51409 0t0 TCP 127.0.0.1:63342 (LISTEN)
java 3606 herles 664u IPv6 56459 0t0 TCP 127.0.0.1:42507 (LISTEN)
java 13283 herles 64u IPv6 172245 0t0 TCP 127.0.0.1:60199 (LISTEN)
java 13283 herles 66u IPv6 172246 0t0 TCP 127.0.0.1:37903 (LISTEN)
java 26840 herles 104u IPv6 314069 0t0 TCP 127.0.0.1:39421 (LISTEN)
⬢ ~
❯❯ sudo netstat -tulpn | grep LISTEN
tcp 0 0 127.0.0.1:36085 0.0.0.0:* LISTEN 1020/containerd
tcp 0 0 127.0.0.53:53 0.0.0.0:* LISTEN 741/systemd-resolve
tcp 0 0 127.0.0.1:631 0.0.0.0:* LISTEN 935/cupsd
tcp 0 0 0.0.0.0:5432 0.0.0.0:* LISTEN 1058/postgres
tcp 0 0 0.0.0.0:7071 0.0.0.0:* LISTEN 974/anydesk
tcp 0 0 127.0.0.1:3306 0.0.0.0:* LISTEN 1697/docker-proxy
tcp6 0 0 :::9068 :::* LISTEN 1677/docker-proxy
tcp6 0 0 :::9069 :::* LISTEN 1647/docker-proxy
tcp6 0 0 127.0.0.1:63342 :::* LISTEN 3606/java
tcp6 0 0 127.0.0.1:37903 :::* LISTEN 13283/java
tcp6 0 0 :::80 :::* LISTEN 1725/docker-proxy
tcp6 0 0 :::6068 :::* LISTEN 1678/docker-proxy
tcp6 0 0 :::6069 :::* LISTEN 1648/docker-proxy
tcp6 0 0 ::1:631 :::* LISTEN 935/cupsd
tcp6 0 0 :::5432 :::* LISTEN 1058/postgres
tcp6 0 0 :::443 :::* LISTEN 1710/docker-proxy
tcp6 0 0 127.0.0.1:39421 :::* LISTEN 26840/java
tcp6 0 0 127.0.0.1:6942 :::* LISTEN 3606/java
tcp6 0 0 127.0.0.1:39871 :::* LISTEN 3606/java
tcp6 0 0 127.0.0.1:60199 :::* LISTEN 13283/java
tcp6 0 0 :::6600 :::* LISTEN 1/init
tcp6 0 0 127.0.0.1:42507 :::* LISTEN 3606/java
⬢ ~
❯
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