Linux / Unix split command
时间：2009-05-13 来源：mseaspring
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About split
Syntax
Examples
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Linux / Unix main page
About split
Split a file into pieces.
Syntax
split [-linecount | -l linecount ] [ -a suffixlength ] [file [name] ]
split -b n [k | m] [ -a suffixlength ] [ file [name]]
| -linecount | -l linecount | Number of lines in each piece. Defaults to 1000 lines. |
| -a suffixlength | Use suffixlength letters to form the suffix portion of the filenames of the split file. If -a is not specified, the default suffix length is 2. If the sum of the name operand and the suffixlength option-argument would create a filename exceeding NAME_MAX bytes, an error will result; split will exit with a diagnostic message and no files will be created. |
| -b n | Split a file into pieces n bytes in size. |
| -b n k | Split a file into pieces n*1024 bytes in size. |
| -b n m | Split a file into pieces n*1048576 bytes in size. |
| file | The path name of the ordinary file to be split. If no input file is given or file is -, the standard input will be used. |
| name | The prefix to be used for each of the files resulting from the split operation. If no name argument is given, x will be used as the prefix of the output files. The combined length of the basename of prefix and suffixlength cannot exceed NAME_MAX bytes; see OPTIONS. |
Examples
split -b 22 newfile.txt new - would split the file "newfile.txt" into three separate files called newaa, newab and newac each file the size of 22.
split -l 300 file.txt new - would split the file "newfile.txt" into files beginning with the name "new" each containing 300 lines of text each
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