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分类： linux
2007-08-29 17:53:00
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
合并:
os linux:
cat newaa newab newac > newfile.txt
os windows:
copy /b newaa /b newab /b newac newfile.txt /b
在linux下看文件合并后是否与原来一致:
md5sum newfile.txt
比较两次的md5号就可以了.
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
合并:
os linux:
cat newaa newab newac > newfile.txt
os windows:
copy /b newaa /b newab /b newac newfile.txt /b
在linux下看文件合并后是否与原来一致:
md5sum newfile.txt
比较两次的md5号就可以了.
给主人留下些什么吧！~~