[0xbadcafebee]

You can use `ln` atomicity for a simple, portable(ish) locking system: https://gist.github.com/pwillis-els/b01b22f1b967a228c31db3cf...

[akoboldfrying]

Really nice explanation of a useful pattern. I was surprised to discover that even the famously broken NFS honours atomicity of hardlink creation.

[michaelcampbell]

I use `mkdir` for a locking mechanism quite frequently. It also provides me an area to put stuff during the script runs.