我只有一行，如下所示，我需要select和Done之间的所有单词
vertical on; select blah blah blah contains all special characters including /*?&; Done
使用bash正则表达式将给出（假设该行位于变量中）：
$ line="vertical on; select blah blah blah contains all special characters including /*?&; Done"
$ [[ "$line" =~ select(.*)Done ]] && echo ${BASH_REMATCH[1]}
blah blah blah contains all special characters including /*?&;
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