Run test -f scripts/deploy.sh.
test -f scripts/deploy.sh
Mission 351
Shell workflow bridge
Checkpoint guards, path handling, output contracts, and change review.
Shell scriptingtestrealpathteesha256sum
Lesson 351 of 360
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Shell scripting · 8 minutes
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learner@clairos:/home/learner $
Unix ops lab: type a command, press Enter
Instructions
8 minutes
Click any instruction for the command details, the why, and the common mistake to avoid.
Run realpath scripts/deploy.sh.
realpath scripts/deploy.sh
Run printf shell-bridge=ready | tee lab/shell-bridge.env.
printf shell-bridge=ready | tee lab/shell-bridge.env
Run sha256sum scripts/deploy.sh.
sha256sum scripts/deploy.sh
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Lesson support
What to notice while you play.
Build repeatable confidence with combining safe shell-script review habits.
Start with test -f scripts/deploy.sh, inspect the result, then continue in order.
Combining safe shell-script review habits helps operators explain what they know before they change anything.
- Skipping the output that proves combining safe shell-script review habits.
- Changing several things before recording a baseline.
Reference
Commands in this lesson.
tee <file>
Write piped text to a lab file and keep it on screen.
sha256sum <file>
Print a deterministic training checksum.
realpath <path>
Resolve a path to its canonical simulated location.
test -e|-f|-d <path>
Check path type in a training-friendly way.