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shell获取文件版本号[\1的含义]
1 | version=`echo "${filename}" | sed -r "s/.*([0-9]+\.[0-9]+\.[0-9]+).*/\1/g"` |
Best practices for writing Dockerfiles
1 | version=`echo "${filename}" | sed -r "s/.*([0-9]+\.[0-9]+\.[0-9]+).*/\1/g"` |
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