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15 stages · From system basics and command input to navigation, files, text, and pipelines.
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Inside the system: resources, kernel, processes / Stage 9 of 12
Steps of stage 9
Track «Inside the system: resources, kernel, processes»
Steps open in any order; progress counts in order.
strace and system calls, /proc/<PID>/fd and lsof, kernel messages about ext4 errors, segfaults and OOM.
10 questions · threshold 70%