Android 缓存日志Logcat导出与分析最佳实践

adb logcat -d --pid=<pid> -v threadtime > app.log

adb logcat -d -v threadtime *:e > errors.log

adb logcat -d -v threadtime | grep "nullpointer" > crash.log

# 查看日志总行数
wc -l log_2025-08-08.log
# 查看前20行
head -n 20 log_2025-08-08.log

pkg=$(adb shell dumpsys window | grep mcurrentfocus | awk -f'/' '{print $1}' | awk '{print $nf}')
adb logcat -d -v threadtime --pid=$(adb shell pidof $pkg) > ${pkg}_$(date +%f_%h-%m-%s).log

while true; do
  if adb logcat -d -b crash | grep -q "fatal exception"; then
    ts=$(date +%f_%h-%m-%s)
    adb logcat -d -v long -b crash > crash_${ts}.log
    echo "崩溃日志已保存：crash_${ts}.log"
    break
  fi
  sleep 5
done

adb logcat -d | iconv -f utf-8 -t utf-8//ignore > clean.log