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Generate filenames in a loop

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# 1  
Old 02-02-2012
Generate filenames in a loop
Hi all,

I want to generate output files in a loop, run the same command on the same input file 1000 times and output in files with a new name each time, maybe a number appended to it. The output will be different each time as I`m sampling randomly from the input file.


I want to do the following in a loop.

Code:
randomsample input_file.txt > output_file1.txt
randomsample input_file.txt > output_file2.txt
...
randomsample input_file.txt > output_file1000.txt

Please help
Last edited by Franklin52; 02-03-2012 at 01:56 PM.. Reason: Please use code tags for data and code samples, thank you
# 2  
Old 02-02-2012
Code:
while [ $cnt -lt 1000 ]
do 
  randomsample input_file.txt > output_file$cnt.txt
  ((cnt=cnt+1)) 
done

Last edited by Franklin52; 02-03-2012 at 01:56 PM.. Reason: Please use code tags for data and code samples, thank you
This User Gave Thanks to 47shailesh For This Post:
newbie83
# 3  
Old 02-02-2012
Here's a way using a for loop in ksh93 on Solaris:
Code:
#!/usr/dt/bin/dtksh

CTR=1001

for (( i=1;i<$CTR;i++ ))
do
  randomsample input_file.txt > output_file${i}.txt
done

exit 0

# 4  
Old 02-02-2012
That works fine in BASH too.
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