1.解析简单json

#!/bin/bash
s="{\"rv\":0,\"flag\":1,\"url\":\"http://www.jinhill.com\",\"msg\":\"test\"}"
parse_json(){
#echo "$1" | sed "s/.*\"$2\":\([^,}]*\).*/\1/"
echo "${1//\"/}" | sed "s/.*$2:\([^,}]*\).*/\1/"
}
echo $s
value=$(parse_json $s "url")
echo $value

#!/bin/bash

s="http://www.zonetec.cn/WlanAuth/portal.do?appid=aaaa&apidx=0"

parse(){

 echo $1 | sed 's/.*'$2'=\([[:alnum:]]*\).*/\1/'

}



value=$(parse $s "appid")

echo $value