echo $1 $2 $3 $4 $5 $6
echo ds9 -histequ $1/*Ml_0* $2/*Ml_0* $3/*Ml_0* $4/*Ml_0* $5/*Ml_0* $6/*Ml_0*  -blink
ds9 -histequ $1/*Ml_0* $2/*Ml_0* $3/*Ml_0* $4/*Ml_0* $5/*Ml_0* $6/*Ml_0*  -blink