1
AWK
source link: https://linuxsuren.github.io/blog/os/linux/common/awk/
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列出第一列
docker ps | grep hello | awk '{print $1}'
有些情况下，我们要打印出一些特殊字符，下面给出一些示例来。
docker images | grep jenkins | awk '{print $1":"$2}'
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