Text Processing · easy · solved in-browser (no VM needed) · 3 tiered hints
Write /home/player/swap.sh: a bash script that reads the comma-separated file /opt/data/people.csv (rows of last,first,age) and prints each row with the first two fields swapped to first,last,age, keeping the line comma-separated. Use awk with comma as both the input and output field separator. (Authored config, graded structurally — the engine isn't run here.)
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Open the challenge and an in-page editor appears — write your answer and tmpfs.tech grades it server-side against the same checks a real box would run. No VM, no install, no signup needed to try.
grep, sed, awk, cut and friends — extract and reshape text and logs.
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Do I need to install anything? No. Everything runs in your browser.
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