回答編集履歴
1
追加
answer
CHANGED
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@@ -1,3 +1,7 @@
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1
1
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```Bash
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2
2
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awk '{getline x;print $0 "," x}'
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3
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+
```
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4
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+
こっちの方が短いか。
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5
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+
```Bash
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6
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+
sed 'N;s/\n/,/'
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3
7
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```
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