找不同

tomer

A:
1
2
5
6

B:
1
2
3
4
输出在A中不在B中的行。谢谢
输出：
5
6

tc1989tc

1. awk 'NR==FNR{a[$0]++;next}{if(!a[$0])print $0}' b.txt a.txt

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tomer

回复 3# tc1989tc


    谢谢，这个怎么不对

awk 'ARGIND==1 {a[$0]} ARGIND>1&&($0 in a){print $0}' b a

tomer

awk 'ARGIND==1 {a[$0]} ARGIND>1&&！($0 in a){print $0}' b a

Shell_HAT

1. grep -vxFf A B

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1. grep -vxFf B A

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tc1989tc

1. awk 'ARGIND==1 {a[$0]} ARGIND>1&&!($0 in a){print $0}' b.txt a.txt

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回复 4# tomer


   

QQ24201439

#!/bin/bash
diffA=`cat B`
for i  in `cat A`
do
        if [[ " $diffA " =~ $i ]]; then
        echo -n ""
        else
        echo $i
        fi
done

fh21_xuejinlian

grep -vf file2 file1

sunzhiguolu

1. perl -nle '{if(@ARGV){$h{$_}=1;next}delete($h{$_})}END{$,="\n";print keys %h}' a b

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6
5