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有两个文件A和B，要求删除A中所有在B中出现的行。用SED如何实现？或其他方法也可
5 replies • 2014-08-20 18:05:22 +08:00
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awk 'NR==FNR{ map[$0]="1"} NR>FNR{if(map[$0]==""){ print $0}}' B A
大概是这意思吧
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$grep -f B -v A
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comm -23 A B
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