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Help with split one file content into multiple different file

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# 1  
Old 09-19-2011
Help with split one file content into multiple different file
Input file:
Code:
[home@perl_beginner]cat input_file.txt
data_1 2342
data_3 242
data_1 3546
data_5 458
data_10 342
data_30 42
data_10 346
content_50 48
content_1 2343

Desired output:
Code:
[home@perl_beginner]cat output_file1.txt
data_1 2342
data_3 242
data_1 3546
data_5 458
 [home@perl_beginner]cat output_file2.txt
 data_10 342
 data_30 42
 data_10 346
 content_50 48
 [home@perl_beginner]cat output_file3.txt
  content_1 2343

Condition:
1. Based on input file and split the content into multiple file that contains 4 data content in each output file.
2. All the desired output file, named as "output_file*.txt"

Based on the input file shown above, because my input file got 9 data content. Since each output file only allow 4 data content. So it will generate three output file named as "output_file1.txt, output_file2.txt, output_file3.txt".

Many thanks for any advice.
# 2  
Old 09-19-2011
Code:
split -a 1 -d -l 4 input_file.txt output_file

It will produce output_file1, output_file2, ...
This User Gave Thanks to Corona688 For This Post:
perl_beginner
# 3  
Old 09-19-2011
How about an awk solution...
Code:
awk '{print > "output_file" int((NR-1)/4+1) ".txt"}' file

This User Gave Thanks to shamrock For This Post:
perl_beginner
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