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As my other post but with echo, to display the value.



ABS_PATH=$(cd $(dirname $0); pwd)
echo ${ABS_PATH}

But that won't give the path of the script being executed unless the user is executing the script from the directory in which it resides, it will give the working directory of the parent.

To answer the question, yes there are variables.

As and example...the absolute path to the current script would be:

ABS_PATH=$(cd $(dirname $0); pwd)