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November 7, 2017 14:47
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マイナンバーシェル芸(文字列結合ではなく数値計算でチェックデジットを計算する) のメモ
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| seq 1 99999999999 | awk '{ | |
| for(i=1;i<=11;i++){ | |
| a=int($0/(10^(i-1))); | |
| b=a-int(a/10)*10; | |
| if(i<=6){ | |
| sum+=b*(i+1) | |
| } else { | |
| sum+=b*(i-5) | |
| } | |
| }; | |
| r=sum%11; | |
| if(r==0||r==1){ | |
| cd=0 | |
| }else{ | |
| cd=11-r | |
| } | |
| printf "%011d\n", $0*10+cd | |
| }' |
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| seq 1 99999999999 | awk '{for(i=1;i<=11;i++){a=int($0/(10^(i-1)));b=a-int(a/10)*10;if(i<=6){sum+=b*(i+1)}else{sum+=b*(i-5)}};r=sum%11;if(r==0||r==1){cd=0}else{cd=11-r}printf "%011d\n", $0*10+cd}' |
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