Shell Programming and Scripting

e#!/bin/bash

for file in path/*
if [$file == *_extracted]
then
extracted_file =$file
else
if [$file== *.roi]
then 
roi_file=$file
fi
fi

done;

#!/bin/bash

for extracted_file in /path-to-dir/*extracted
do
  echo "do stuff with $extracted_file"
done

for roi_file in /path-to-dir/*.roi
do
  echo "do stuff with $roi_file"
done

if [[ $file == *_extracted ]]

case $file in
  *_extracted) 
      extracted_file=$file ;;
  *.roi)
      roi_file=$file;;
esac

#!/bin/bash

for file in path/*_extracted
do
  extracted_file=$file
done

for file in path/*_roi
do
  roi_file=$file
done

if [ -n $extracted_file -a -n $roi_file ]
then
  yourcommand $extracted_file $roi_file
fi

yourcommand path/*_extracted path/*_roi