Nitpicking the shell history scene in 'Tron: Legacy'

This meticulous analysis dissects the Unix shell history scene in 'Tron: Legacy', revealing a surprising blend of technical accuracy and curious inaccuracies. The author, Simon Tatham of PuTTY fame, finds the scene to be remarkably well-crafted for a Hollywood depiction, sparking discussion among Hacker News readers about movie realism and the real-world challenges of technical consulting. It's a deep dive that resonates with those who appreciate painstaking technical detail in unexpected places.

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First Seen

May 28, 7:00 PM

Last Seen

May 29, 2:00 PM

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The Lowdown

Simon Tatham, known for his work on PuTTY, undertakes a detailed nitpicking of the Unix shell history shown in a scene from the 2010 film 'Tron: Legacy'. Initially expecting "hilarious fake-computerese nonsense," Tatham was pleasantly surprised by the scene's relative plausibility and depth, leading to a full day of analysis with a junior colleague. The article explores the commands Sam Flynn types and the system's responses, identifying both intentional realism and some amusing errors.

The use of bin/history instead of a shell builtin history is flagged as an immediate error, suggesting a setup to display custom plot-relevant output.
The account setup, with Sam logging in as 'backdoor' after 'root' fails, is found to be largely plausible, especially considering 'backdoor' shares root's UID.
The uname -a output identifies the OS as "SolarOS," likely a fictionalized Solaris, yet other elements like top and iostat outputs, and cat /proc/meminfo, reveal clear Linuxisms, implying a Linux system in Solaris costume.
The configure command initially seems out of order (make then configure), but is re-evaluated as a custom configuration script for the 'laser controller' software, rather than an Autoconf script.
Flynn's actions of killing processes and touching an /opt/LLL/run/ok file before running the laser control software are deemed sensible steps for preparing a critical operation, despite a few minor inefficiencies.
The act of editing a ~/last_will_and_testament.txt file before a dangerous procedure is considered a plausible in-universe mistake, highlighting Flynn's distracted state rather than a filmmaker's error.
The inconsistent use of proportional versus fixed-width fonts across different terminal windows remains an unexplained anomaly.

Ultimately, Tatham concludes that while some outright errors exist, a significant portion of the scene exhibits remarkable thought and effort from the filmmakers. Many perceived "mistakes" are reinterpreted as plausible in-universe errors by Flynn himself, adding to the scene's unexpected realism. The author praises the detailed 'bonus content' provided for geeks who pause and scrutinize.

The Gossip

Hollywood's Hacking Hits & Misses

Commenters laud the 'Tron: Legacy' scene for its unusual realism compared to typical movie hacking tropes. While the article highlights some technical blunders, the overall consensus is that the effort put into the scene's Unix commands and system output makes it stand out. There's appreciation for how the scene avoids generic "run upload_me" commands, providing enough detail to be genuinely scrutinized by technical audiences.

Behind the Digital Curtain

Discussion delves into the creative minds behind the scene's technical visuals. One commenter fondly recalls Josh Nimoy, crediting him for incorporating Emacs and Unix commands into the blockbuster. This sparks reflection on the challenges consultants face when technical accuracy clashes with directorial vision, often leading to 'goofs' being intentional requests from the film production.

Deep Dive Debates & Detective Work

Readers engage with the author's specific 'nitpicks,' offering alternative interpretations or historical context. The 'backdoor' login, for instance, is theorized to be a real-world vulnerability akin to a CVE from an unpatched system. Another perspective suggests that 'killing processes' within the 'Tron' universe could represent Kevin Flynn attempting to neutralize sentient 'programs' like Clu, adding a lore-driven layer to the technical action. The author's focus on font anomalies also leads to playful recognition, given his known work on terminal software.

Fair Use Footnotes & Fights

The author's inclusion of a footnote detailing his belief in the fair use of the movie screenshot resonates with a commenter who shares their own struggles with copyright enforcement. This highlights the real-world tension content creators face when using copyrighted material for educational or critical purposes, even when legally permissible.