Exec form vs shell form in Docker

What this snippet does

ENTRYPOINT fixes the executable while CMD supplies default arguments a user can replace.

Expected output

1 packets transmitted, 1 packets received

Why practise typing this

Typing cmd & entrypoint 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.

More Docker practice

• Shell form swallows signalsCMD & ENTRYPOINT · intermediate
• Overriding CMD at run timeCMD & ENTRYPOINT · beginner
• Overriding ENTRYPOINTCMD & ENTRYPOINT · intermediate
• CMD ignored when args are passedCMD & ENTRYPOINT · intermediate
• Entrypoint wrapper with execCMD & ENTRYPOINT · advanced
• Forgetting exec in the wrapperCMD & ENTRYPOINT · advanced