/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

24 votes162 views1 answer
Http errors npm
Shell/Bash
1 vote155 views2 answers
Skype linux install
Shell/Bash
19 votes149 views4 answers
Delete all local branches git
Shell/Bash
8 votes182 views1 answer
Git log show summary
Shell/Bash
0 vote152 views1 answer
Grep on mac os terminal
Shell/Bash
3 votes156 views1 answer
Export variable delete
Shell/Bash
0 vote147 views1 answer
Git fatal "is in submodule"
Shell/Bash
12 votes210 views4 answers
Fetch all branches
Shell/Bash
5 votes143 views2 answers
Npm ERR! cb() never called!
Shell/Bash
0 vote156 views1 answer
Get latitude and longitude based on user entered place android
Shell/Bash