Question

I want to create an application with a Linux shell script like this — but can it be done?

This application will create a tree containing data. The tree should be loaded in the memory. The tree (loaded in memory) could be readable from any other external Linux script.

• Is it possible to do it with a Linux shell?
• If yes, how can you do it?
• And are there any simple examples for that?

Answer 1

There is a related discussion here. They use shared memory device /dev/shm and, ostensibly, it works for multiple users. At least, it’s worth a try:

http://www.linuxquestions.org/questions/linux-newbie-8/bash-is-it-possible-to-write-to-memory-rather-than-a-file-671891/

Edit: just tried it with two users on Ubuntu – looks like a normal directory and REALLY WORKS with the right chmod.

See also:

http://www.cyberciti.biz/tips/what-is-devshm-and-its-practical-usage.html