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PTLAB(1) General Commands Manual PTLAB(1)

ptlabPacket Tracer wrapper script

ptlab [-lnkux] [lab]

The ptlab utility manages Wendell Odom's Config Lab Packet Tracer files. By default, lab can be either a URL to the Config Lab or the lab's ID. If run without the lab argument, ptlab executes Packet Tracer without any startup file.

The following options are available:

Treat the provided lab as a .pkt file instead of a config lab identifier.
Don't run packet tracer, only fetch the config lab.
Keep lab from last run instead of overwriting it with the initial config lab.
Update the config lab with the newest version from the server.
Turn on debugging (sh(1) Xtrace option).

~/ptlabs/
Directory for config labs and temporary files.

The ptlab utility exits 0 on success, and >0 if an error occurs.

Run the "ROAS Basics 1" lab:

$ ptlab https://www.certskills.com/clab120/

Update the same lab, but don't run it:

$ ptlab -u -n 120

Jacob R. Edwards <jacob@jacobedwards.org>

October 19, 2025 jacob