- 论坛徽章:
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回复 4# Shell_HAT
# [ /home/soio/1bs/awks ] {2018-05-15 16:09:10}
: 1526371750:0;➜ awk 'NR==1{a[$4]=$4}NR==2{b[$3]=$3}{print a[$4] b[$3]}' 4.kf
23
66
# [ /home/soio/1bs/awks ] {2018-05-15 16:27:35}
: 1526372855:0;➜ cat -n 4.kf
1 21 34 56 23
2 23 45 66 89
3 13 25 16 18
# [ /home/soio/1bs/awks ] {2018-05-15 16:33:46}
: 1526373226:0;➜ awk '{a[$4]=$4}{b[$3]=$3}{print a[$4] b[$3]}' 4.kf
2356
8966
1816
# [ /home/soio/1bs/awks ] {2018-05-15 16:34:28}
: 1526373268:0;➜ awk '{a[$4]=$4;b[$3]=$3}{print a[$4] b[$3]}' 4.kf
2356
8966
1816
主意:能否设定第 1 行 a[$0] ,第 2 行a[$0]
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