linux按行切割文件

╰+哭是因爲堅強的太久メ 2022-06-14 09:12 182阅读 0赞

**split --help**

Usage: split [OPTION]... [INPUT [PREFIX]]
    Output fixed-size pieces of INPUT to PREFIXaa, PREFIXab, ...; default
    size is 1000 lines, and default PREFIX is 'x'.  With no INPUT, or when INPUT
    is -, read standard input.
    
    Mandatory arguments to long options are mandatory for short options too.
      -a, --suffix-length=N   generate suffixes of length N (default 2)
          --additional-suffix=SUFFIX  append an additional SUFFIX to file names
      -b, --bytes=SIZE        put SIZE bytes per output file
      -C, --line-bytes=SIZE   put at most SIZE bytes of lines per output file
      -d, --numeric-suffixes[=FROM]  use numeric suffixes instead of alphabetic;
                                       FROM changes the start value (default 0)
      -e, --elide-empty-files  do not generate empty output files with '-n'
          --filter=COMMAND    write to shell COMMAND; file name is $FILE
      -l, --lines=NUMBER      put NUMBER lines per output file
      -n, --number=CHUNKS     generate CHUNKS output files; see explanation below
      -u, --unbuffered        immediately copy input to output with '-n r/...'
          --verbose           print a diagnostic just before each
                                output file is opened
          --help     display this help and exit
          --version  output version information and exit

举例，待切割文件为data.log：

1）按2行切割 -l 2

2）指定切割后的文件前缀名 data\_

3）指定切割后的文件后缀名为数字 -d

4）指定切割后的文件后缀名数字的长度 -a 4，这里长度可根据切割出来的文件有多少估算

**split -l 2 data.log -d -a 4 data\_**

![SouthEast][]

原文出自：[http://blog.csdn.net/daiyudong2020/article/details/73302609][http_blog.csdn.net_daiyudong2020_article_details_73302609]

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[SouthEast]: /images/20220614/171c10ca23c34e748a4c2129a1689fc9.png
[http_blog.csdn.net_daiyudong2020_article_details_73302609]: http://blog.csdn.net/daiyudong2020/article/details/73302609