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Chinaunix
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wzltian
rg:
2014-06-06 00:49
}:
@shellô
a.txt b.txtıMкϲ
1a.txtеĵڶвb.txtЕrӵb.txtͬrѵһеĕrgҲӵ
2a.txtеĵڶдb.txtЕra.txtеĵһдb.txtеĵУb.txtՕr
a.txtеһиµb.txtеĵϣta.txtеһиµb.txtеĵϣt
a.txt
20140501103323|aaa|7
20140512331212|bbb|11
20140410103333|ccc|7
20140516331522|eee|11
b.txt
20140101101121|aaa|7
20140210103323|bbb|7|2014031010233119
20140312233121|123|8|2014050218311909
20140512331212|eee|11
20140513233321|fff|10
ϣY(ji)
c.txt
20140101101121|aaa|7|20140501103323
20140210103323|bbb|7|20140512331212
20140312233121|123|8
20140512331212|eee|11|20140516331522
20140513233321|fff|10
20140410103333|ccc|7|20140410103333
:
ÑעԺܸ
rg:
2014-06-06 08:48
awkɗlŸ㶨߀ôL(qun)uˡ
awk 'BEGIN{FS=OFS="|"}{print $0,$1}' a.txt >>b.txt
awk -F"|" '{if(a[$2]==""){a[$2]=$0;b[$2]=$4}else{if($4>b[$2])a[$2]=$0}}END{for(i in a)print a[i]}' b.txt >>c.txt
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:
zl624867243
rg:
2014-06-06 10:39
ţ
؏
2#
ÑעԺܸ
:
reyleon
rg:
2014-06-06 13:21
awk 'BEGIN{FS=OFS="|"}NR==FNR{b[$2]=$0;next}{if($2 in b){split(b[$2],x,"|");if($1>x[4]){x[4]=$1;for(i in x)s=length(s)>0?s"|"x[i]:x[i];b[$2]=s;s=""}}else{$4=$1;b[$2]=$0}}END{for(i in b)print b[i]}' b a
ƴa
:
wzltian
rg:
2014-06-09 09:43
؏
4#
reyleon
xx
:
wzltian
rg:
2014-06-09 09:43
؏
2#
ÑעԺܸ
xxκһ
:
wzltian
rg:
2014-06-09 10:20
؏
2#
ÑעԺܸ
@\кY(ji)
:
Herowinter
rg:
2014-06-09 10:32
Herowinter 2014-06-09 10:32
؏
1#
wzltian
awk 'BEGIN{FS=OFS="|"} NR==FNR{a[$2]=$0;next} {if($2 in a){split(a[$2],b,"|");if(!length($4)||b[1]>$4)$4=b[1];delete a[$2]};print} END{for(i in a){split(a[i],b,"|");print a[i]"|"b[1]}}' a.txt b.txt
20140101101121|aaa|7|20140501103323
20140210103323|bbb|7|2014031010233119
20140312233121|123|8|2014050218311909
20140512331212|eee|11|20140516331522
20140513233321|fff|10
20140410103333|ccc|7|20140410103333
ƴa
ڶО123ĸY(ji)cһ
:
li0924
rg:
2014-06-09 12:44
li0924 2014-06-09 13:00
ԇԇ@Л]и߶˴ϙn
awk -F"|" 'NR==FNR{a[$2]=$1;c[$2]=$0;next}{$4=(($2 in a)?(a[$2]>$4?a[$2]:$4):"";print $0;b[$2]}END{for(i in a){if(! (i in b))print c[i] FS a[i]}}' a b
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@SQLܺÌF(xin)merge into㶨
:
wzltian
rg:
2014-06-09 13:49
؏
8#
Herowinter
xxeĽY(ji) 123 摪(yng)ԓֵģ㌑@Y(ji)Ҫ
:
wzltian
rg:
2014-06-09 14:06
؏
9#
li0924
xx
2С} һС}Y(ji)ǡ|ָ ڶҵĆ} 123ֵеҌ©ˣfֱǸôij°
a.txt
20140501103323|aaa|7
20140512331212|bbb|11
20140410103333|ccc|7
20140516331522|eee|11
b.txt
20140101101121|aaa|7
20140210103323|bbb|7|20140310102331
20140312233121|123|8|20140502183119
20140512331212|eee|11
20140513233321|fff|10
ϣY(ji)
c.txt
20140101101121|aaa|7|20140501103323
20140210103323|bbb|7|20140512331212
20140312233121|123|8|20140502183119 ---- @ֵҌ©F(xin)a
20140512331212|eee|11|20140516331522
20140513233321|fff|10
20140410103333|ccc|7|20140410103333
:
li0924
rg:
2014-06-09 14:20
li0924 2014-06-09 14:25
؏
11#
wzltian
@Ӹˣ
awk 'BEGIN{FS=OFS="|"}NR==FNR{a[$2]=$1;c[$2]=$0;next}{$4=a[$2]>$4?a[$2]:$4;print $0;b[$2]}END{for(i in a){if(! (i in b))print c[i] FS a[i]}}' a b
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