Bash while循环有两个字符串条件

Question

I have run into a bit of a problem with my bash script. My script among other things is starting a server that takes some time to get going. In order to combat the long startup, I have put in a while loop that queries the server to see if its running yet.

while [ $running -eq 0 ]; do
echo "===" $response "===";
if [ "$response" == "" ] || [ "$response" == *"404 Not Found"* ]; then
    sleep 1;
    response=$(curl $ip:4502/libs/granite/core/content/login.html);
else
   running=1;
fi
done

When exiting the loop $response equals the "404" string. If thats the case, the thing should still be in the loop, shouldn't it? Seems my loop is exiting prematurely.

Joe

Answer 1

[ .. ] doesn't match by glob. Use [[ .. ]] :

if [ "$response" == "" ] || [[ "$response" == *"404 Not Found"* ]]; then

Answer 2

I am not sure why my original script was failing. I assume it has to do with the fact that I was comparing against HTML. To get my script working I wound up using the string length instead of the content. The using the following comparator has everything working swimmingly.

if [ -z "$response" ] || [ ${#response} -lt 100 ]; then

Thanks for the help, Joe