如何从bz2文件中提取数据而不解压缩文件

Question

I want to perform the following command in a compressed file (.bz2). I typed the following:

awk '{print $1}' input.txt.bz2 > output.txt

But the result is: Killed. How can I extract portion of the compressed text file I have without decompress it as it is extremely large file and I do not have enough space?

Answer 1

You must decompress it. You don't need to decompress it to disk.

bzcat input.txt.bz2 | awk '{print $1}' > output.txt