#!/usr/bin/env bash T() { tr -d '\r\0' < /home/deshab/qemu_serial_loop1.log; } echo '=== selftest ===' T | grep -a 'SELFTEST\|block/wake' echo '=== last 14 lines ===' T | tail -14 echo '=== exception/panic markers ===' T | grep -a -n 'IDT. exception\|vector=0x000000000000000d\|PANIC\|panic\|dsk_load\|DSK jump' | tail -6