cat 2.txt | awk -F " " '{print
cat 2.txt | awk -F " " '{print $1}' | sort | uniq > 11.txt
把文件里面内容清空命令
echo '' > 1.txt
}' | sort | uniq > 11.txtcat 2.txt | awk -F " " '{print
cat 2.txt | awk -F " " '{print $1}' | sort | uniq > 11.txt
把文件里面内容清空命令
echo '' > 1.txt
}' | sort | un
