I think I might have a few hundred copies of:
```
# From https://stackoverflow.com/a/246128
DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
```
```
# From https://stackoverflow.com/a/246128
DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
```
So many sysadmins have rudimentary skills and simply copy what works.
I have seen some folks with huge repos of code snippets like that
DIR=$(dirname $(readlink -f $0))
I started using the longer one, and then I gave up on shell scripting on OS X for other reasons, and didn't go back. So yeah there is a lot of random cargo culting.
In Oil I hope to provide an even simpler method that's built in (and it also has readlink builtin to support this)