Split of shell command

Listen to people say that text classification when processing 100G text files, incredibly without big data, processing method is to use the shell split to split into a number of small files.

Split command

NAME split-split a file into pieces synopsis split [OPTION] [INPUT [PREFIX]] DESCRIPTION Output Fixed-size pieces of INPUT to Prefixaa, Prefixab, ...;  The default size is lines, and the default PREFIX is ' x '.

       With no input, or when input was-, read standard input.

       Mandatory arguments to long options is Mandatory for short options too. -A,--suffix-length=n use suffixes of length N (default 2)-B,--bytes=size put SIZE b Ytes per output file-c,--line-bytes=size put at most SIZE bytes of lines per output file- D,--numeric-suffixes use numeric suffixes instead of alphabetic-l,--lines=number PU T number lines per output file--verbose print a diagnostic to standard error just before each OUTPU T file is opened--HELP display this Help and exit--version output version information and
Exit
       SIZE May has a multiplier suffix:b for, K for 1K, and M for 1 Meg. 

-l split file by row

-B splits files by the specified size, supports B,K,M

Cases:

Split-b 256m Result_guid_active_train_all Small

Ll-lh

-rw-rw-r--1 256M June 20:29 Smallaa
-rw-rw-r--1 256M June 20:29 Smallab
-rw-rw-r--1 256M June 20:29 Smallac
-rw-rw-r--1 256M June 20:29 Smallad
-rw-rw-r--1 256M June 20:29 smallae
-rw-rw-r--1 256M June 20:29 Smallaf
-rw-rw-r--1 256M June 20:29 Smallag
-rw-rw-r--1 256M June 20:29 Smallah
-rw-rw-r--1 256M June 20:29 Smallai
-rw-rw-r--1 256M June 20:29 Smallaj