conda: find out last time an environment was used (activated)

Question

Is it possible to find out when a specific conda environment was used, i.e., activated, the last time? How?

Background info: The idea is to sort the environments by their last use date and this way find out which one could be removed.

Streit

Did you perhaps found a way to do this? I have the exact same use-case. – Ulda

Answer 1

ls -lt {conda path}/envs/

This should suffice to see the last changes to the environments. Last activation time could be taken with

HISTTIMEFORMAT="%d/%m/%y
history | grep --only-matching 'conda activate.*' | sort --unique

Helmsman