Daily Archives: December 5, 2011

split – file splitter in slackware konsole

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A good thing about slackware is he has lots of functional command that in many linux doesn’t have.
I mean the other linux needs to install another program while slackware already has it inside the original installation.
Like this split command. It means it can split large file into pieces.
Here is the manual

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 use suffixes of length N (default 2)
-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 use numeric suffixes instead of alphabetic
-l, –lines=NUMBER put NUMBER lines per output file
–verbose print a diagnostic just before each
output file is opened
–help display this help and exit
–version output version information and exit

SIZE may be (or may be an integer optionally followed by) one of following:
KB 1000, K 1024, MB 1000*1000, M 1024*1024, and so on for G, T, P, E, Z, Y.

Report split bugs to bug-coreutils@gnu.org
GNU coreutils home page:
General help using GNU software:
For complete documentation, run: info coreutils ‘split invocation’

This is the example of the splitting process

$split -b 100M largefile.tar.gz

There will be lots of file named like xaa xab xac and so on.
Because split is a simple command, we need to modify it a little bit. It splits files in the current folder, maybe we will have a difficulty to deliver a lots number of the results. So let’s create temporary folder and split the file inside it.
Another my own script might work to do that instantly. But I have not write it down here. Maybe some other time hehe