我有一个约300万行的文件,这是文件的前几行:
head out.txt
NA
NA
NA
NA
NA
gene85752,gene85753
gene85752,gene85753
gene85752,gene85753
gene85752,gene85753
gene85752,gene85753
gene85752,gene85753
gene85752,gene85753,gene85754
gene85752,gene85753,gene85754
gene85752,gene85753,gene85754
gene85752,gene85753,gene85754
gene85752,gene85753
gene85752,gene85753
gene85752,gene85753
gene85752,gene85753
gene85752,gene85753
gene85752,gene85753
gene85752,gene85753
gene85752,gene85753
gene85752,gene85753
gene85752
gene85752
对于那些用“,”分隔的行,我想将所有内容保留在第一个逗号之后和第二个逗号之前。这是我想要的输出:
outgood.txt
NA
NA
NA
NA
NA
gene85753
gene85753
gene85753
gene85753
gene85753
gene85753
gene85753
gene85753
gene85753
gene85753
gene85753
gene85753
gene85753
gene85753
gene85753
gene85753
gene85753
gene85753
gene85753
gene85752
gene85752
由于cut
默认情况下打印不带分隔符的行,因此以下工作
cut -f2 -d, file
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