Ubuntu port ping

# Use the below command in your terminal
# No requirments are needed
(echo >/dev/tcp/{host}/{port}) &>/dev/null && echo "open" || echo "close"

# An example below
(echo >/dev/tcp/10.20.20.21/27017) &>/dev/null && echo "open" || echo "close"

# if open then it will return "open"
# if closed then it will return "close"
# if you can't connect to it then it will freeze, use ctrl+c

Similar codes

13 votes165 views4 answers
Git reset a folder
Shell/Bash
0 vote147 views1 answer
Linux find multiple directories
Shell/Bash
0 vote125 views1 answer
Seach only in name apt
Shell/Bash
0 vote154 views1 answer
Error: unknown switch `e' usage: git reset [--mixed | --soft | --hard | --merge | --keep] [-q] [<commit>]
Shell/Bash
0 vote135 views1 answer
Powershell file already exists
Shell/Bash
0 vote139 views1 answer
Scp linux to mac
Shell/Bash
2 votes132 views2 answers
Preload for ubuntu
Shell/Bash
1 vote156 views3 answers
Ubuntu install safari browser terminal
Shell/Bash
4 votes171 views10 answers
Install nvm mac
Shell/Bash
3 votes163 views1 answer
Push branch to main github
Shell/Bash