How the shell compresses the pictures in the specified directory and subdirectories in batches

The user uploads the picture, generally has not been compressed, causes the space to waste. So you need to write a program that looks up a picture file (jpg,gif,png) of directories and subdirectories, and compresses pictures that are larger than a certain value.

The code is as follows:

#!/bin/bash  
     
# Look up a picture file (jpg,gif,png) for a directory and subdirectories, compress a picture that is larger than a value in  
     
# Config  
     
folderpath= '/home/fdipzone/photo '   # Picture directory path  
     
maxsize= ' 1M '    # picture size allowable value  
maxwidth=1280   # picture max width  
maxheight=1280  # picture Max height  
QUALITY=85 #      image quality  
     
     
# compression processing  
# Param $folderPath picture directory  
function compress () {  
     
    folderpath=$1  
     
    If [-D "$folderPath"];  Then for  
     
        file in $ (find "$folderPath" (-name "*.jpg"-or-name "*.gif"-or-name "*.png")-type f-size + "$maxSize" ); Do  
     
            echo $file  
     
            # call ImageMagick resize picture  
            $ (convert-resize "$maxWidth" x "$maxHeight" "$file"-quality "$ Quality "$file")  
        performed else echo "$folderPath NOT exists"  
    fi  
}  
     
# Execute Compress  
Compress "$folderPath"  
     
exit 0

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