how to split a file

aarif · #1 (**permalink**) 03-01-2008

Hi everyone,

please forgive my ignorance but I am trying to split a large data file into smaller manageable chunks. The file is approx 1GB in size (maybe a little more). I want to split it into 4 files exactly. I know there is a way in which to split by size but i would like to split by number i.e. i want 4 files specifically...

is this possible?

Thanks!!

robotronic · #2 (**permalink**) 03-01-2008

If you have the size, where's the problem?

Code:

BYTES=`ls -l mybigfile | awk '{ printf("%0.0f\n", $5/4) }'`
split -b $BYTES mybigfile

No?

aarif · #3 (**permalink**) 03-01-2008

Quote:

Originally Posted by robotronic

If you have the size, where's the problem?

Code:

BYTES=`ls -l mybigfile | awk '{ printf("%0.0f\n", $5/4) }'`
split -b $BYTES mybigfile

No?

Sorry i realised shortly afterwards how dumb my question was! Yes, i know the file size. What i did was to get wc bigfile

this told me how many rows of data there was. I then divided this number by 4 and then did split -l by that number.

sorry to take up your time :S

Thanks,
asif.

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