Longest Command In Crosh (2027)

We found the wall. After narrowing it down, the longest successful command in Crosh is exactly:

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. longest command in crosh

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: We found the wall

For example, using a printf built-in (or just pressing Tab to trigger auto-complete), the buffer limit becomes —that is 2^17 - 1 . Crosh, however, is different

echo AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA... (32,767 times) 0 Execution time: ~400ms (mostly rendering) Shell sanity after execution: Intact. Final Verdict The longest command in Crosh is 32,767 characters using an external binary, or 131,071 characters using a shell built-in.

bash: /bin/echo: Argument list too long The echo command is a built-in in many shells, but in Crosh's restricted environment, echo often forks to /bin/echo . That hits ARG_MAX .