Dear Customers,

The PolySync Support Center is now just for submitting tickets to our support team. All articles and tutorials have been moved to the new PolySync Help Center and the content below will be removed shortly.

Thank you,
The PolySync Team

Linux for beginners

This guide should give you enough background with the Linux Ubuntu command line interface to build and execute example projects for PolySync. For a more detailed list of commands, check out this Ubuntu help article.

Opening a Terminal

A terminal allows you to enter system commands directly through a console (terminal) window. On Ubuntu you can open a terminal with the key combination: CTRL+ALT+T. Alternatively, you can open the Dashboard Home, and search for the application: Terminal

Changing Directories

You can determine your directory by running the 'present working directory' command with the alias:

$ pwd

To change directories, use the alias:

$ cd /usr/local/polysync
$ pwd

To list the contents of the the current directory, use the alias:

$ ls
bin/build_res.mkCHANGELOG.txtdb/deps/diagnostics/doc/examples/ include/lib/MakefileREADME.txtrnr_logs/src/utils/

Debugging logs

Ubuntu has a default directory for where running nodes should log their activity and error messages.

You can open the Ubuntu System Log file (syslog) using the text editor of your choice:

gedit /var/log/syslog

You can constantly monitor the logging to the syslog file by opening a terminal and issuing the following command

tail -f /var/log/syslog

Leave the window open while you start and stop PolySync nodes (in another terminal) to see the DEBUG and ERROR messages.

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