But if you are writing a script that generates a massive one-liner inside Crosh (e.g., a very long for loop), remember the magic number: . The Longest Command Ever (Recorded) Here it is, abbreviated for sanity:
So, what happens when you try to break them? What is the you can type before Crosh gives up?
# Generate a 32,767-character argument printf 'A%.0s' 1..32767 | xargs -0 echo Note: The above command requires xargs , which may not be available in stock Crosh. You have been warned. Did I miss a longer command? Do you know a hidden built-in that bypasses the limit? Let me know in the comments. longest command in crosh
I decided to find out. In a standard Bash shell on Linux, the limit is usually around 128KB to 1MB (defined by ARG_MAX ). Crosh, however, is different. It is built on ash (Almquist shell) with a custom frontend running inside the Chrome browser process.
Result: Error. Argument list too long .
If you have ever opened crosh (Ctrl+Alt+T) on a Chromebook, you know it’s not a full Linux terminal. It’s a restricted shell designed for debugging, network diagnostics, and ping tests. But every shell has limits.
Result: The cursor froze. Crosh did not crash, but it stopped accepting keyboard input for 3 seconds. After processing, the command executed. But if you are writing a script that
For example, using a printf built-in (or just pressing Tab to trigger auto-complete), the buffer limit becomes —that is 2^17 - 1 .
