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Wait for a TCP port, Bash style
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| wait_tcp_port() { | |
| local host="$1" port="$2" | |
| # see http://tldp.org/LDP/abs/html/devref1.html for description of this syntax. | |
| while ! exec 6<>/dev/tcp/$host/$port; do | |
| echo "$(date) - still trying to connect to $host:$port" | |
| sleep 1 | |
| done | |
| exec 6>&- | |
| } | |
| wait_tcp_port <hostname> <port> |
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