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automating a perl script

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# 1  
Old 08-03-2012
automating a perl script
Hi,

I have a perl script that takes in 2 numerical values as ARGV[].

Code:
perl script.pl parameter1 num1 num2

in my case I have 1000's of num1 and num2. I can have them in separate files. Please let me know how to automate this run using shell scripting or using awk, so that I don't have to enter all the values.
# 2  
Old 08-03-2012
Depending on what these input files look like, it may be as simple as
Code:
cat filename1 filename2 filename3 | xargs -n 2 perl script.pl parameter1

This will accept files of pure numbers separated by spaces and/or newlines.

If that's not what your files look like, please post an example, otherwise we can't help.
# 3  
Old 08-09-2012
How do I change the above command when I put the 2 numerical values in one file (separated by tab) ( I have 1000's of values (lines) in that file) and I want to direct the output file (1000 files) using '>'.

example of my tab delimited parameter file is
Code:
38215   41324
41361   41664
41696   42207
42230   42404
42406   42514

# 4  
Old 08-09-2012
If each line needs a separate output file, then:
Code:
OUTPUT=1
while read A B
do
        OUTPUT_FILENAME=`printf "%04d" "$OUTPUT"`
        perl script.pl $A $B > ${OUTPUT_FILENAME}
done < inputfile

If you only want one output file, the code I already gave you will work.
# 5  
Old 08-09-2012
@Lucky Ali: If you're allowed to modify the perl program, you could open the tab delimited parameter file using a file-handle and read its contents inside from inside the program. That way, you wouldn't have to bother about writing a wrapper shell script.
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