shell random

random=$$           #Initialize the seed to the PID of the script
upper_limit=$1

random_number=$(( $random % $upper_limit + 1))    #或者 random_number=$[ $random % $upper_limit + 1]

echo "$random_number"

RN=$(dd if=/dev/random count=1 2>/dev/null | od -t u4 | awk '{print $2}' | head -n 1)

echo "$RN"

 

 

@SmartPhoneIBM54:~/script$ ./random.sh 100
18

154290310

awk -F@ '{ print $1 }' DispatchDrawGL | sort -u

 awk '{ print $1 }' implements\ GLSurfaceViewGroup.DispatchDrawGL | sort -u

for f in `ls`;do cat $f | sed -e 's/\/\/\s*Log/Log/' > $f.ok;mv $f.ok $f;done

 awk -F: '{ print $1}' drawChild.txt | sort -u | sed -e 's/\.\///'