Run sha256sum scripts/deploy.sh.
sha256sum scripts/deploy.sh
Mission 263
Checksum before run
Hash scripts and read notes before trusting them.
Shell scriptingsha256sumcatgrep
Lesson 263 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 cat data/checksums.txt.
cat data/checksums.txt
Run grep deploy data/checksums.txt.
grep deploy data/checksums.txt
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Lesson support
What to notice while you play.
Hash scripts and read notes before trusting them.
Run the commands in order and compare the outputs.
Junior operators build confidence by gathering evidence before changing systems.
- Skipping the inspection step.
- Assuming one command tells the whole story.
Reference
Commands in this lesson.
cat <file>
Print text file contents.
grep [-i] <text> <file>
Find literal text inside a file.
sha256sum <file>
Print a deterministic training checksum.