Bash comparison between strings - equal but not equal for it

Question

I just wanted to do a really simple comparison between 2 strings in Bash :

stat=`curl -Is $url | head -n 1` 
echo $stat
if [ \"$stat\" = \"HTTP/1.1 200 OK\" ];th         


        

Answer 1

If you think there might be trailing characters (which you don't mind) then use [[ pattern matching instead:

# Try not to use `` anymore, backticks are hard to read
stat=$(curl -Is $url | head -n 1)  

# When debugging, use some sort of delimiter which shows leading or trailing whitespace     
echo "<$stat>"                          

# Variables inside [[ don't need to be quoted
# Adding a trailing * allows optional trailing characters
if [[ $stat == "HTTP/1.1 200 OK"* ]];then
    echo "$symbol is OK"
    echo $stat
    $(( valide++ ))          # You don't need the "$", just the variable name
else
    echo "$symbol is 404"
    echo $stat
    $(( err++ ))             # using a $ in (( )) can change the scan sequence
fi