如何在不解压缩的情况下从.gz压缩文件中获取几行 [英] How to get few lines from a .gz compressed file without uncompressing

问题描述

如何从gzip解压缩的文件中获取前几行? 我尝试了zcat，但是它抛出了错误

How to get the first few lines from a gziped file ? I tried zcat, but its throwing an error

zcat CONN.20111109.0057.gz|head
CONN.20111109.0057.gz.Z: A file or directory in the path name does not exist.

推荐答案

zcat(1)可以由compress(1)或gzip(1)提供.在您的系统上，它似乎是compress(1) －它正在寻找扩展名为.Z的文件.

zcat(1) can be supplied by either compress(1) or by gzip(1). On your system, it appears to be compress(1) -- it is looking for a file with a .Z extension.

切换到gzip -cd代替zcat，您的命令应该可以正常运行:

Switch to gzip -cd in place of zcat and your command should work fine:

 gzip -cd CONN.20111109.0057.gz | head

说明

   -c --stdout --to-stdout
          Write output on standard output; keep original files unchanged.  If there are several input files, the output consists of a sequence of independently compressed members. To obtain better compression, concatenate all input files before compressing
          them.

   -d --decompress --uncompress
          Decompress.

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