Lipo doesn't work

Shell Programming and Scripting
1

Hi guys,
Am using lipo to merge ppc and i386 version of a static/dylib file based on "file type to load". I am working on Mac OS 10.5.6 and new to shell scripting. Please help me out.

This is my code.

echo "This file combine ppc and i386 file to form universal library"

echo "source Path: "
read path
echo "source Path1: "
read path1
echo "destination : "
read dest

echo "file type to load"
read exten

for iFile in `find $path -type f -name $exten`
do
    echo $iFile
    iFile1="${path1}${iFile##*/}"
    echo $iFile1
    destFile="${dest}${iFile##*/}"
   lipo -create $iFile $iFile1 -output destFile
done

echo "***   Done   ***"

It's say lipo can't load the file in iFile. I am trying to run lipo command.

2

Does the file in $iFile exist?

Your script will fail if any of the filenames contain spaces.

Is $exten a complete file name or an extension? Could it contain wildcards?

find $path -type f -name "*$exten" |
 while read iFile
 do
    echo $iFile
    iFile1=${path1%/}/${iFile##*/}
    echo $iFile1
    destFile="${dest%/}/${iFile##*/}"
   lipo -create "$iFile" "$iFile1" -output destFile
 done
3 
find $path -type f -name "*$exten" |
 while read iFile
 do
    echo $iFile
    iFile1=${path1%/}/${iFile##*/}
    echo $iFile1
    destFile="${dest%/}/${iFile##*/}"
   lipo -create "$iFile" "$iFile1" -output "$destFile" # changed the last line
 done

I figured out the problem in my script ,
It generated this path
"/sw/lib/ImageMagick-6.5.4/modules-Q16/codersycbcr.a"
which should have been
"/sw/lib/ImageMagick-6.5.4/modules-Q16/coders/ycbcr.a"

Thank you very much. I normally feed exten wildcards ".a" or ".dylib". I need to make checks for file existence.

I have faced that problem too. How should I handle white spaces in file paths?

4

Always quote variables.

Never use:

for file in $( some_command )

Always pipe the output of the command into a loop instead:

some_command |
 while read file
 do
   : do whatever with "$file" (not $file)
 done
5

Thanks a lot.