UART-coredevice-logging.md

+This page contains information on how to perform continuous coredevice logging over UART using the DAX comtools package.
+
+## Continuous logging
+
+Some logging scripts, such as the UART core logger, need to be initiated at startup to run in the background. This can be done using [crontab](https://askubuntu.com/questions/814/how-to-run-scripts-on-start-up#816) and [tmux](https://serverfault.com/questions/907878/how-to-start-a-detached-tmux-session-via-ssh).
+
+`crontab` startup script:
+
+```
+SHELL=/bin/bash
+USER=artiq
+@reboot              ~/log_core.sh
+```
+
+`~/log_core.sh` script:
+
+```bash
+#!/bin/bash -e
+. ~/.nix-profile/etc/profile.d/nix.sh
+tmux new -d -s log_core nix-shell ~/shell.nix --run "dct_core_logger ..."
+```
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