Shell Programming and Scripting

#!/bin/bash

# Set the video directory here
VIDEO_ROOT_DIRECTORY="/Users/astrid/NFS/scripts/img2iso/";

# Check if the directory exist or not
if [ -d "$VIDEO_ROOT_DIRECTORY" ]; then
	cd $VIDEO_ROOT_DIRECTORY
else
	print "ERROR: Unable to reach directory - or it does not exist!";
fi

for imgfile do 
    	case $imgfile *.img
            	do mv $imgfile.img $imgfile.iso;
               	done
          print "img-files renamed to iso";
    	esac
done

exit 0

#!/bin/bash

VIDEO_ROOT_DIRECTORY="/Users/astrid/NFS/scripts/img2iso"

for imgfile in `find "$VIDEO_ROOT_DIRECTORY" -name "*.img" -type f`
do
   n=0
   exit=""
   suffix=""

   while [ ! "$exit" ]
   do
      newname=`echo "$imgfile" | sed "s/\.img$/$suffix\.iso/"`
      if [ ! -f "$newname" ]
      then
         mv "$imgfile" "$newname"
         exit="y"
      else
         n="$((n+1))"
         suffix="-$n"
      fi
   done
done

$ ls -l img2iso
total 0
-rwxrwxrwx    1 astrid  619956085    0 Feb 15 13:01 dummy.img
-rw-r--r--   1 astrid  619956085    0 Feb 15 21:50 dummy.iso
-rwxrwxrwx    1 astrid  619956085    0 Feb 15 13:01 example.img
-rw-r--r--    1 astrid  619956085    0 Feb 15 21:35 example_no_permission.img
-rwxrwxrwx    1 astrid  619956085    0 Feb 15 13:01 image.img
-rw-r--r--    1 astrid  619956085    0 Feb 15 13:01 isoimg.iso
drwxr-xr-x    2 astrid  619956085   68 Feb 15 12:53 level1a
drwxr-xr-x    9 astrid  619956085  306 Feb 15 13:00 level1b

#!/bin/bash

# Set the video directory here
VIDEO_ROOT_DIRECTORY="/Users/astrid/NFS/scripts/img2iso"

for imgfile in `find "$VIDEO_ROOT_DIRECTORY" -name "*.img" -type f`
do
   echo "Processing IMGFILE <$imgfile>"
   n=0
   exit=""
   suffix=""

   while [ ! "$exit" ]
   do
      newname=`echo "$imgfile" | sed "s/\.img$/$suffix\.iso/"`
      if [ ! -f "$newname" ]
      then
         echo "NEW NAME OK! Renaming to <$newname>"
         mv "$imgfile" "$newname"
         exit="y"
      else
         echo "NEW NAME <$newname> already exists! Incrementing suffix"
         n="$((n+1))"
         suffix="-$n"
      fi
   done

for file in $(find . -type f -iname '*.img'); do
  mv $file ${file/img/iso}
done

save_ifs=$IFS ; IFS='
'
for file in $(find . -type f -iname '*.img'); do
  mv "$file" "${file/img/iso}"
done
IFS=$save_ifs