在使用“cat”和“ls”这样的词时，是否有获得行索引的方法？

Question

我正在寻找获得特别是“猫”的线路号码的方法。

我在ubuntu 16.04上尝试了这样的命令

cat flux.log |grep "statistic"

这就是发现信息的结果。

 Using fit statistic: chi
 Using test statistic: chi
Fit statistic : Chi-Squared =         175.92 using 16 PHA bins.
Test statistic : Chi-Squared =         175.92 using 16 PHA bins.
Fit statistic : Chi-Squared =         175.92 using 16 PHA bins.
Test statistic : Chi-Squared =         175.92 using 16 PHA bins.
 Fit statistic in use: Chi-Squared
 Using fit statistic: chi
 Using test statistic: chi
Fit statistic : Chi-Squared =         175.92 using 16 PHA bins.
Test statistic : Chi-Squared =         175.92 using 16 PHA bins.
Fit statistic : Chi-Squared =           6.05 using 16 PHA bins.
Test statistic : Chi-Squared =           6.05 using 16 PHA bins.
Fit statistic : Chi-Squared =           6.05 using 16 PHA bins.
Test statistic : Chi-Squared =           6.05 using 16 PHA bins.
Fit statistic : Chi-Squared =           6.05 using 16 PHA bins.
Test statistic : Chi-Squared =           6.05 using 16 PHA bins.
Fit statistic : Chi-Squared =           6.05 using 16 PHA bins.
Test statistic : Chi-Squared =           6.05 using 16 PHA bins.
Fit statistic : Chi-Squared =           6.05 using 16 PHA bins.
Test statistic : Chi-Squared =           6.05 using 16 PHA bins.
Fit statistic : Chi-Squared =          66.15 using 16 PHA bins.
Test statistic : Chi-Squared =          66.15 using 16 PHA bins.
 Fit statistic in use: Chi-Squared
 Using fit statistic: chi
 Using test statistic: chi
Fit statistic : Chi-Squared =          66.15 using 16 PHA bins.
Test statistic : Chi-Squared =          66.15 using 16 PHA bins.

在这个结果中，我想用最后一行来捕捉信息。

Fit statistic : Chi-Squared =          66.15 using 16 PHA bins.
Test statistic : Chi-Squared =          66.15 using 16 PHA bins.

问题是有很多行，而这些数字是随机的。所以我只有“适合”、“测试”、“统计”或“X-平方”这样的信息来查找。

如果这些结果有行号，并且可以被区分，我可以找到我想要的行。有人帮我吗？

ps，我试过这个命令

<cat -n flux.log |grep "statistic">

但是每个文件的所有行都是不同的。

Answer 1

试试man nl。也是awk '{print NR,$0}' myfile