我们如何在UNIX中删除文件的最后7行 [英] how can we remove last 7 lines of file in unix

问题描述

如何使用unix命令从csv文件中删除最后7行.

How to remove last 7 lines from the csv file using unix commands.

例如-

abc
bffkms
slds
行开始1
行开始2
行开始3
行开始4
行开始5
行开始6
行从7开始

abc
bffkms
slds
Row started 1
Row started 2
Row started 3
Row started 4
Row started 5
Row started 6
Row started 7

我想从上述文件中删除最后7行.请提出建议.

I want to delete the last 7 lines from above file. Please suggest.

推荐答案

您可以使用head

head -n-7 file

从手册页:

 -n, --lines=[-]K
              print the first K lines instead of the first 10;
              with the leading '-', print all but the last K lines of each file

喜欢:

kent$ seq 10|head -n-7
1
2
3

这篇关于我们如何在UNIX中删除文件的最后7行的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！