找出Xcode没有使用的图片

 #!  /bin/sh

 PROJ=`find  .  -name  '*.xib'  -o  -name  '*.[mh]'`

 for png  in ` find  .  -name  '*.png'`

 do

    name =`basename  $png`

    if  !  grep  -qhs  "$name"  "$PROJ"; then

     echo  "$png is not referenced"
    fi

 done

reference

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