From http://gitstbox.com/

bash.sh

#!/bin/bash
begin=$(date +%s)
for ((i=0;i<1;i++));do
{
	mosquitto_pub -h 120.24.75.220 -p 61613 -u admin -P password -t test -m test
}&
done
wait
end=$(date +%s)  
spend=$(expr $end - $begin)  
echo "spend time$spend秒"


Folder_TEST="/home/jim/Downloads/dao_hang"
for file_test in ${Folder_TEST}/*; do
	echo $file_test
	/opt/aispeech/linux_asr/aispeech-speex-ogg-c-sample-20151116/fos_pcm $file_test
done