chmod or ls -al

[JK]

Hello

I just found the ammonite. Sounds very promising.

1) How can I do these simple things efficiently in ammonite

ls -al foo*

chmod 700 foobar

diff -r ./foo ./bar


2) What is the file copy performance, ammonite vs bash?
3) What is the file diff performance, ammonite vs bash?

If I spawn a new process from amm, how can I control the amount of memory it can use?

I might use it in a backup system which uses heavily copy and diff. Backup size varies from 50GB to 200GB so speed is important.

Thank you for your support.