Operator On The Wire
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BLUE TEAM / MALWARE REVERSE / LINUX / CRASH

Utility

CommandWhat it doesWhen to use
btBacktrace of current taskFIRST command always (find crash root)
bt -aBacktrace for ALL CPUs/tasksMulti-thread/kernel-wide issues
logKernel ring buffer (dmesg)See panic messages & errors
sysSystem info (kernel, uptime, etc.)Quick context
helpList commandsWhen lost