What this snippet does
Exit code 137 means SIGKILL, usually the out-of-memory killer.
Expected output
Exited (137) 4 minutes ago 137
Why practise typing this
Typing debugging & ops code builds muscle memory for the symbols and indentation Docker uses most, which prose-based typing tests never cover. DevType measures your words per minute and accuracy on this snippet and tracks the individual characters you mistype, so later lessons can target them.
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