How to check if another instance of my shell script is running

Question

GNU bash, version 1.14.7(1)

I have a script is called \"abc.sh\" I have to check this from abc.sh script only... inside it I have written f

Answer 1

Definitely works.

if [[ `pgrep -f $0` != "$$" ]]; then
        echo "Exiting ! Exist"
        exit
fi