/Shell/Bash/Check if internet is available shell script

Check if internet is available shell script

test=google.com
if nc -zw1 $test 443 && echo |openssl s_client -connect $test:443 2>&1 |awk '
  handshake && $1 == "Verification" { if ($2=="OK") exit; exit 1 }
  $1 $2 == "SSLhandshake" { handshake = 1 }'
then
  echo "we have connectivity"
fi

Source: unix.stackexchange.com

Similar codes

77 votes120 views2 answers
Change remote to use ssh git command
Shell/Bash
0 vote121 views1 answer
How to know what container is using a volume?
Shell/Bash
2 votes99 views1 answer
Gnupg, gnupg2 and gnupg1 do not seem to be installed, but one of them is required for this operation
Shell/Bash
2 votes129 views1 answer
Wsl default user
Shell/Bash
1 vote137 views1 answer
23:in `system!': failed to run on-target -u root apt-get update >> var/install.log 2>&1
Shell/Bash
8 votes119 views2 answers
Pip install pytorch windows
Shell/Bash
1 vote123 views3 answers
Crear usuario linux comandos
Shell/Bash
0 vote121 views1 answer
Mac install sklearn
Shell/Bash
1 vote113 views1 answer
Batch remove file
Shell/Bash
2 votes112 views2 answers
Git undo amend
Shell/Bash