Does anyone know how to put the following into a system call?

convert $thumbNail1 \( +clone -threshold -1 -virtual-pixel black -spread 10 -blur 0x3 -threshold 50% -spread 1 -blur 0x.7 \) +matte -compose Copy_Opacity -composite $thumbNail2 (works on the command-line)

Thanks

In reply to system call to ImageMagick with many parameters fails by august

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