splitting the large file into smaller files


 
Thread Tools Search this Thread
Top Forums UNIX for Dummies Questions & Answers splitting the large file into smaller files
# 1  
Old 11-16-2008
splitting the large file into smaller files

hi all
im new to this forum..excuse me if anythng wrong.

I have a file containing 600 MB data in that. when i do parse the data in perl program im getting out of memory error.

so iam planning to split the file into smaller files and process one by one.

can any one tell me what is the code will do for spliting the bigger file.

what is the better way to achieve this ?
# 2  
Old 11-16-2008
Use Unix split command

Hi,

If you are working on Unix, then you can use unix split command. Its quick and does the split as per your requirement.

Try

split -b [bytes][k/m] filename

where you can provide bytes in Kilobytes or Megabytes by putting k/m after the byte number.
 
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Splitting a text file into smaller files with awk, how to create a different name for each new file

Hello, I have some large text files that look like, putrescine Mrv1583 01041713302D 6 5 0 0 0 0 999 V2000 2.0928 -0.2063 0.0000 N 0 0 0 0 0 0 0 0 0 0 0 0 5.6650 0.2063 0.0000 N 0 0 0 0 0 0 0 0 0 0 0 0 3.5217 ... (3 Replies)
Discussion started by: LMHmedchem
3 Replies

2. UNIX for Beginners Questions & Answers

Split large file into smaller files without disturbing the entry chunks

Dears, Need you help with the below file manipulation. I want to split the file into 8 smaller files but without cutting/disturbing the entries (meaning every small file should start with a entry and end with an empty line). It will be helpful if you can provide a one liner command for this... (12 Replies)
Discussion started by: Kamesh G
12 Replies

3. Shell Programming and Scripting

Sed: Splitting A large File into smaller files based on recursive Regular Expression match

I will simplify the explaination a bit, I need to parse through a 87m file - I have a single text file in the form of : <NAME>house........ SOMETEXT SOMETEXT SOMETEXT . . . . </script> MORETEXT MORETEXT . . . (6 Replies)
Discussion started by: sumguy
6 Replies

4. Shell Programming and Scripting

Help needed - Split large file into smaller files based on pattern match

Help needed urgently please. I have a large file - a few hundred thousand lines. Sample CP START ACCOUNT 1234556 name 1 CP END ACCOUNT CP START ACCOUNT 2224444 name 1 CP END ACCOUNT CP START ACCOUNT 333344444 name 1 CP END ACCOUNT I need to split this file each time "CP START... (7 Replies)
Discussion started by: frustrated1
7 Replies

5. Shell Programming and Scripting

Splitting a file into several smaller files using perl

Hi, I'm trying to split a large file into several smaller files the script will have two input arguments argument1=filename and argument2=no of files to be split. In my large input file I have a header followed by 100009 records The first line is a header; I want this header in all my... (9 Replies)
Discussion started by: ramky79
9 Replies

6. Shell Programming and Scripting

Splitting large file into multiple files in unix based on pattern

I need to write a shell script for below scenario My input file has data in format: qwerty0101TWE 12345 01022005 01022005 datainala alanfernanded 26 qwerty0101mXZ 12349 01022005 06022008 datainalb johngalilo 28 qwerty0101TWE 12342 01022005 07022009 datainalc hitalbert 43 qwerty0101CFG 12345... (19 Replies)
Discussion started by: jimmy12
19 Replies

7. Shell Programming and Scripting

Divide large data files into smaller files

Hello everyone! I have 2 types of files in the following format: 1) *.fa >1234 ...some text... >2345 ...some text... >3456 ...some text... . . . . 2) *.info >1234 (7 Replies)
Discussion started by: ad23
7 Replies

8. UNIX for Dummies Questions & Answers

multiple smaller files from one large file

I have a file with a simple list of ids. 750,000 rows. I have to break it down into multiple 50,000 row files to submit in a batch process.. Is there an easy script I could write to accomplish this task? (2 Replies)
Discussion started by: rtroscianecki
2 Replies

9. Shell Programming and Scripting

Help with splitting a large text file into smaller ones

Hi Everyone, I am using a centos 5.2 server as an sflow log collector on my network. Currently I am using inmons free sflowtool to collect the packets sent by my switches. I have a bash script running on an infinate loop to stop and start the log collection at set intervals - currently one... (2 Replies)
Discussion started by: lord_butler
2 Replies

10. Shell Programming and Scripting

Splitting large file into small files

Hi, I need to split a large file into small files based on a string. At different palces in the large I have the string ^Job. I need to split the file into different files starting from ^Job to the last character before the next ^Job. Also all the small files should be automatically named.... (4 Replies)
Discussion started by: dncs
4 Replies
Login or Register to Ask a Question