BASH regular expression

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By Pank on September 29, 2017 9:57 AM Vote 0 Votes

e.g. Get http://mirror01.idc.hinet.net/CentOS/ first 7.x dir name

RE=">(7[0-9\.]+)"
[[ `curl -s http://mirror01.idc.hinet.net/CentOS/` =~ $RE ]]
echo ${BASH_REMATCH[1]}

Output:
7.0.1406

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