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【メモ】AWK で 1行目が無視される

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Last updated at Posted at 2019-08-21

AWK で 1行目が無視される

(空白行が出力される)

CSVファイルを処理したい時、


awk '{FS=","; print $2}' hoge.csv

とすると、1行目が空白行として出力されて用をなさない。
正しい文法に従って、

awk 'BEGIN{FS=","}{print $2}' hoge.csv

とすれば、問題ない。

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