HI, 1) I am trying to write a perl script to run my already compiled C++ program. Since i need to run this program many times (25 times atleast) How do i do this? 2) and every time the C++ code creates a text file output by name say "data.txt" i need perl to rename this file as say 1.txt, 2.txt, where the number indicates the how many times the C++ code is being called. Or should i create a new file and copy all the C++ output into it. How to do this? 3) Once i have these new files 1.txt, 2.txt etc., i need to update them, basically they have 3-4 columns and 100's of rows of numbers in them. I need to add or subtarct something from each of the numbers in the file. Basically how to update the files? 4)) also for each run i need to specify some arguements or user input at the console. How to do this? I am a novice to perl.. So any suggestions would be of great help. Thanks in advance

In reply to Running C++ multiple times and saving the output by Anonymous Monk

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