/Shell/Bash/Function in shell script returning 0 only

Function in shell script returning 0 only

lockdir="somedir"
testlock(){
    retval=""
    if mkdir "$lockdir"
    then # Directory did not exist, but it was created successfully
         echo >&2 "successfully acquired lock: $lockdir"
         retval="true"
    else
         echo >&2 "cannot acquire lock, giving up on $lockdir"
         retval="false"
    fi
    echo "$retval"
}

retval=$( testlock )
if [ "$retval" == "true" ]
then
     echo "directory not created"
else
     echo "directory already created"
fi

Source: stackoverflow.com

Similar codes

9 votes197 views6 answers
Push github
Shell/Bash
0 vote209 views1 answer
Kill tensorboard process
Shell/Bash
17 votes197 views1 answer
Ping in cmd
Shell/Bash
-1 vote220 views1 answer
Mongodb add on heroku
Shell/Bash
32 votes232 views4 answers
Npm install heroku
Shell/Bash
1 vote205 views1 answer
Transfer files to cluster
Shell/Bash
0 vote215 views1 answer
Install node vns
Shell/Bash
0 vote219 views1 answer
How to give git your email address
Shell/Bash
2 votes210 views3 answers
How to start docker
Shell/Bash
8 votes223 views4 answers
Ubuntu activate venv
Shell/Bash