Linux and Unix split command
Split a file into pieces.
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.|
split -b 22 newfile.txt new
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
Split the file "newfile.txt" into files beginning with the name "new" each containing 300 lines of text each