OK I fix the view_graph.sh

query=$( $HEAD --bytes="$CONTENT_LENGTH" )

    read -n $CONTENT_LENGTH query

#GRAPH1=echo "$GRAPHS" | $SED "s/,/\n/g" GRAPH1=`echo "$GRAPHS" | $SED "s/,/ /g" Where the , is replaced with a space

AND the right bash vesion

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