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process a group of files

Posted on 1998-06-10
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Last Modified: 2012-05-04
Hello,
I have an executable program can only read one file one time and process it and write output to a new created file.
How can I invoke it one time to process all the files in current directory .

actually I would like to do something like this: " processing_program  *  "

Thanks
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Question by:tian
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by:tian
ID: 2007862
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zonker031798 earned 200 total points
ID: 2007863
You can write a shell script which iterates through each
file in the current directory, invoking your executable program
on each one.

Let's say that your executable program is called "ep".  Then
in the csh, you could do this:

foreach i (*)
      ep  < $i > $i.output
end

Or in the Bourne shell, you could do this:

for i in *
do
      ep < $i > $i.output
done

If you'd like to monitor the progress of your script as it
runs the program on each file, then add an "echo" statement
inside the loop along the lines of:

      echo "ep now working on $i"


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