Linux -shuf

shuf  随机切分文件内容

打乱文件行号

shuf imei.txt > imei_1.txt

1/把文随机切分成若干部分

(1)全部打乱

shuf imei.txt > imei_info.txt

(2)顺序切分  前100行

$ head -n100 imei_info.txt > imei_1.txt
$ tail -n+101 imei_info.txt > imei_1.txt   
$ awk 'NR<101' imei_info.txt > imei_1.txt 

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转载自www.cnblogs.com/wwbz/p/11240474.html