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Ubuntu 下 使用 adb logcat 显示 Android 日志

2024-01-24 14:41| 来源: 网络整理| 查看: 265

作者 : 万境绝尘 转载自www.hanshuliang.com/?post=32 经过自己的评注后发表

eclipse 自带的 LogCat 工具太垃圾了, 开始用 adb logcat 在终端查看日志;(这个才是重点,虽然说现在从eclipse项目迁移到as上已经很容易,但是公司的一些老化项目依然要用已被谷歌抛弃了的eclipse(迁移到studio上的难度很大),eclipse虽是一款传统经典的IDE但是会有各种各样的奇葩问题,此时学习adb相关的知识已刻不容缓,这是我转这篇文章的目的)

解析 adb logcat 的帮助信息

在命令行中输入

adb logcat –help

就可以显示该命令的帮助信息:

octopus@octopus:~$ adb logcat --help Usage: logcat [options] [filterspecs] options include: -s Set default filter to silent. Like specifying filterspec '*:s' -f Log to file. Default to stdout -r [] Rotate log every kbytes. (16 if unspecified). Requires -f -n Sets max number of rotated logs to , default 4 -v Sets the log print format, where is one of: brief process tag thread raw time threadtime long -c clear (flush) the entire log and exit -d dump the log and then exit (don't block) -t print only the most recent lines (implies -d) -g get the size of the log's ring buffer and exit -b Request alternate ring buffer, 'main', 'system', 'radio' or 'events'. Multiple -b parameters are allowed and the results are interleaved. The default is -b main -b system. -B output the log in binary filterspecs are a series of [:priority] where is a log component tag (or * for all) and priority is: V Verbose D Debug I Info W Warn E Error F Fatal S Silent (supress all output) '*' means '*:d' and by itself means :v If not specified on the commandline, filterspec is set from ANDROID_LOG_TAGS. If no filterspec is found, filter defaults to '*:I' If not specified with -v, format is set from ANDROID_PRINTF_LOG or defaults to "brief" adb logcat 命令格式 :

adb logcat [选项] [过滤项]

其中 选项 和 过滤项 在 中括号 [] 中, 说明这是可选的;

1. 选项解析:

– “-s”选项 : 设置输出日志的标签, 只显示该标签的日志;

– “-f”选项 : 将日志输出到文件, 默认输出到标准输出流中, -f 参数执行不成功;

– “-r”选项 : 按照每千字节输出日志, 需要 -f 参数, 不过这个命令没有执行成功;

– “-n”选项 : 设置日志输出的最大数目, 需要 -r 参数, 这个执行 感觉 跟 adb logcat 效果一样;

– “-v”选项 : 设置日志的输出格式, 注意只能设置一项;

– “-c”选项 : 清空所有的日志缓存信息;

– “-d”选项 : 将缓存的日志输出到屏幕上, 并且不会阻塞;

– “-t”选项 : 输出最近的几行日志, 输出完退出, 不阻塞;

– “-g”选项 : 查看日志缓冲区信息;

– “-b”选项 : 加载一个日志缓冲区, 默认是 main, 下面详解;

– “-B”选项 : 以二进制形式输出日志;

输出指定标签内容 : — “-s”

设置默认的过滤器, 如 我们想要输出 “System.out” 标签的信息, 就可以使用

adb logcat -s System.out

输出结果 :

octopus@octopus:~$ adb logcat -s System.out --------- beginning of /dev/log/system --------- beginning of /dev/log/main I/System.out(22930): GSM -91 I/System.out(22930): SignalStrength issssssssss : -91 I/System.out(22930): GSM -91 I/System.out(22930): SignalStrength issssssssss : -91 I/System.out(22930): Supervisor Thread I/System.out(22930): Got run mode 输出日志信息到文件 : — “ -f“

该选向后面跟着输入日志的文件

adb logcat -f log

会出现错误, 这里我们不推荐使用该选项; 输出结果:

octopus@octopus:~$ adb logcat -f log couldn't open output file: Read-only file system — “>“

“>” 后面跟着要输出的日志文件, 可以将 logcat 日志输出到文件中

adb logcat > log

使用 more log 命令查看日志信息; 输出结果:

octopus@octopus:~$ adb logcat > log ^C octopus@octopus:~$ more log --------- beginning of /dev/log/system V/ActivityManager( 500): We have pending thumbnails: null V/ActivityManager( 500): getTasks: max=1, flags=0, receiver=null V/ActivityManager( 500): com.android.settings/.Settings: task=TaskRecord{42392278 #448 A com.android.settings U 0} V/ActivityManager( 500): We have pending thumbnails: null 指定 logcat 的日志输出格式 : — “-v“选项:

例如:

adb logcat -v time

可以查看日志的输出时间;

— “brief“

这是默认的日志格式:

” 优先级 / 标签 (进程ID) : 日志信息 “

adb logcat -v prief

输出结果:

octopus@octopus:~$ adb logcat -v brief --------- beginning of /dev/log/system D/PowerManagerService( 500): handleSandman: canDream=true, mWakefulness=Awake D/PowerManagerService( 500): releaseWakeLockInternal: lock=1101267696, flags=0x0 — “process“

” 优先级 (进程ID) : 日志信息 “

adb logcat -v process

输出结果:

octopus@octopus:~$ adb logcat -v process --------- beginning of /dev/log/system D( 500) MobileDataStateReceiver received: ACTION_ANY_DATA_CONNECTION_STATE_CHANGED_MOBILE [wap] (MobileDataStateTracker) V( 500) Broadcast: Intent { act=android.intent.action.ANY_DATA_STATE_MOBILE flg=0x10 (has extras) } ordered=true userid=0 (ActivityManager) D( 500) wap: Intent from SIM 0, current SIM 0, current DataState DISCONNECTED (MobileDataStateTracker) D( 500) wap: wap setting isAvailable to false (MobileDataStateTracker) D( 500) wap: Received state=DISCONNECTED, old=DISCONNECTED, reason=dataDetached (MobileDataStateTracker) D( 500) BDC-Calling finishReceiver: IIntentReceiver=41c46ba0 (ActivityThread) — “tag“

优先级 / 标签 : 日志信息”,

adb logcat -v tag

输出结果:

octopus@octopus:~$ adb logcat -v tag --------- beginning of /dev/log/system I/PowerManagerService: setBrightness mButtonLight 0. D/PowerManagerService: updateScreenStateLocked: mDisplayReady=true, newScreenState=2, mWakefulness=1, mWakeLockSummary=0x1, mUserActivitySummary=0x1, mBootCompleted=true D/PowerManagerService: handleSandman: canDream=true, mWakefulness=Awake — “thread“

优先级 ( 进程ID : 线程ID) 标签 : 日志内容

adb logcat -v tag

输出结果:

octopus@octopus:~$ adb logcat -v thread --------- beginning of /dev/log/system V( 500: 2141) getTasks: max=1, flags=0, receiver=null V( 500: 2141) com.lewa.launcher/.Launcher: task=TaskRecord{41dccc20 #425 A com.lewa.launcher U 0} V( 500: 2141) We have pending thumbnails: null V( 500: 2140) getTasks: max=1, flags=0, receiver=null — “raw”

只输出日志信息, 不附加任何其他 信息, 如 优先级 标签等,

adb logcat -v raw

输出结果:

octopus@octopus:~$ adb logcat -v raw --------- beginning of /dev/log/system notifications are enabled for com.kindroid.security Assigned score=0 to Notification(pri=0 contentView=com.kindroid.security/0x7f030052 vibrate=null sound=null defaults=0x0 flags=0x2 kind=[null]) Native set alarm :Alarm{41e1ca00 type 3 com.kindroid.security} reset poweroff alarm none — “time”

日期 时间 优先级 / 标签 (进程ID) : 进程名称 : 日志信息

adb logcat -v time

输出结果:

octopus@octopus:~$ adb logcat -v time --------- beginning of /dev/log/system 04-25 17:18:13.019 V/ActivityManager( 500): Broadcast sticky: Intent { act=android.intent.action.SIG_STR flg=0x10 (has extras) } ordered=false userid=-1 04-25 17:18:13.157 V/NotificationService( 500): enqueueNotificationInternal: pkg=com.kindroid.security id=1020 notification=Notification(pri=0 contentView=com.kindroid.security/0x7f030052 vibrate=null sound=null defaults=0x0 flags=0x2 kind=[null]) 04-25 17:18:13.158 V/NotificationService( 500): notifications are enabled for com.kindroid.security 04-25 17:18:13.158 V/NotificationService( 500): Assigned score=0 to Notification(pri=0 contentView=com.kindroid.security/0x7f030052 vibrate=null sound=null defaults=0x0 flags=0x2 kind=[null]) 04-25 17:18:13.555 V/ActivityManager( 500): getTasks: max=1, flags=0, receiver=null — “long”

输出以上提到的所有的头信息:

[ 日期 时间 进程ID : 线程ID 优先级 / 标签] 日志信息

adb logcat -v long

操作过程及结果:

octopus@octopus:~$ adb logcat -v long --------- beginning of /dev/log/system [ 04-25 17:21:18.118 500:0x2fe V/ActivityManager ] We have pending thumbnails: null [ 04-25 17:21:18.696 593:0x251 W/ActivityThread ] Content provider com.android.providers.telephony.TelephonyProvider already published as telephony [ 04-25 17:21:19.119 500:0x396 V/ActivityManager ] getTasks: max=1, flags=0, receiver=null 清空日志缓存信息

命令:adb logcat -c

可以将之前的日志信息清空, 重新开始输出日志信息;

将缓存日志输出

adb logcat -d

输出缓存日志, 之后退出, 不会进行阻塞; (就是输出logcat里的所有缓存日志)

输出最近的日志

adb logcat -t 5

可以输出最近的5行日志, 并且不会阻塞;

操作过程及结果:

octopus@octopus:~$ adb logcat -t 5 --------- beginning of /dev/log/system --------- beginning of /dev/log/main W/ADB_SERVICES(10028): adb: unable to open /proc/10028/oom_adj D/dalvikvm(23292): threadid=11: created from interp D/dalvikvm(23292): start new thread D/dalvikvm(23292): threadid=11: notify debugger D/dalvikvm(23292): threadid=11 (Thread-24538): calling run() octopus@octopus:~$ 查看日志缓冲区信息

adb logcat -g

操作过程及结果:

octopus@octopus:~$ adb logcat -g /dev/log/main: ring buffer is 256Kb (255Kb consumed), max entry is 5120b, max payload is 4076b /dev/log/system: ring buffer is 256Kb (255Kb consumed), max entry is 5120b, max payload is 4076b octopus@octopus:~$ 加载日志缓冲区

adb logcat -b 缓冲区类型

Android中的日志缓冲区 : system缓冲区 - 与系统相关的日志信息, radio缓冲区 - 广播电话相关的日志信息, events缓冲区 - 事件相关的日志信息, main缓冲区 - 默认的缓冲区;

adb logcat -b radio -t 5

radio缓冲区 - 广播电话相关的日志信息

输出结果:

D/PHONE (23599): [GeminiDataSubUtil] UAPP_C6-4 D/GSM (23599): [GDCT][simId1]apnType = default D/GSM (23599): [GDCT][simId1]isDataAllowed: not allowed due to - gprs= 1 - SIM not loaded - desiredPowerState= false D/GSM (23599): [GDCT][simId1]isDataPossible(default): possible=false isDataAllowed=false apnTypePossible=true apnContextisEnabled=true apnContextState()=IDLE I/MUXD (23591): [gsm0710muxd] 3426:main(): Frames received/dropped: 18242/0

adb logcat -b main -t 5

main缓冲区 - 默认的缓冲区;

输出结果:

D/NotificationService( 500): notification.sound=null D/NotificationService( 500): mDmLock=false I/ATCIJ (16576): Couldn't find 'atci-serv-fw' socket; retrying after timeout W/ADB_SERVICES( 246): create_local_service_socket() name=shell:export ANDROID_LOG_TAGS="" ; exec logcat -b main -t 5 W/ADB_SERVICES(16815): adb: unable to open /proc/16815/oom_adj

adb logcat -b system -t 5

system缓冲区 - 与系统相关的日志信息

输出结果:

D/PowerManagerService( 500): updateScreenStateLocked: mDisplayReady=true, newScreenState=0, mWakefulness=0, mWakeLockSummary=0x1, mUserActivitySummary=0x0, mBootCompleted=true D/PowerManagerService( 500): handleSandman: canDream=false, mWakefulness=Asleep V/NotificationService( 500): enqueueNotificationInternal: pkg=com.kindroid.security id=1020 notification=Notification(pri=0 contentView=com.kindroid.security/0x7f030052 vibrate=null sound=null defaults=0x0 flags=0x2 kind=[null]) V/NotificationService( 500): notifications are enabled for com.kindroid.security V/NotificationService( 500): Assigned score=0 to Notification(pri=0 contentView=com.kindroid.security/0x7f030052 vibrate=null sound=null defaults=0x0 flags=0x2 kind=[null])

adb logcat -b event -t 5

events缓冲区 - 事件相关的日志信息,

输出结果:

I/notification_cancel( 500): [com.kindroid.security,1026,NULL,0,0,64] I/notification_enqueue( 500): [com.kindroid.security,1020,NULL,0,Notification(pri=0 contentView=com.kindroid.security/0x7f030052 vibrate=null sound=null defaults=0x0 flags=0x2 kind=[null])] I/notification_cancel( 500): [com.kindroid.security,1026,NULL,0,0,64] I/notification_enqueue( 500): [com.kindroid.security,1020,NULL,0,Notification(pri=0 contentView=com.kindroid.security/0x7f030052 vibrate=null sound=null defaults=0x0 flags=0x2 kind=[null])] I/notification_cancel( 500): [com.kindroid.security,1026,NULL,0,0,64] 以二进制形式输出日志

adb logcat -B

操作过程及输出结果:

octopus@octopus:~$ adb logcat -B -t 5 O��_�3ZS�4gps_mt3326nmea_reader_parse: line = 1218GPS get accuracy failed, fix mode:1 ^��_�3ZS�=gps_mt3326nmea_reader_addc: line = 1331the structure include nmea_cb address is 0x658cc8e8 H��_�3ZSEGEgps_mt3326nmea_reader_addc: line = 1332nmea_cb address is 0x5d2fe279 i���3ZS�)>ADB_SERVICEScreate_local_service_socket() name=shell:export ANDROID_LOG_TAGS="" ; exec logcat -B -t 5 7*E*E�3ZSo�YADB_SERVICESadb: unable to open /proc/17706/oom_adj 2.过滤项解析 过滤项格式:

[:priority] , 标签:日志等级, 默认的日志过滤项是 ” *:I ” ;

– V : Verbose (明细);

– D : Debug (调试);

– I : Info (信息);

– W : Warn (警告);

– E : Error (错误);

– F : Fatal (严重错误);

– S : Silent(Super all output) (最高的优先级, 可能不会记载东西);

过滤指定等级日志:

adb logcat 10 *:E

显示 Error 以上级别的日志

操作过程及输出结果:

octopus@octopus:~$ adb logcat *:E Note: log switch off, only log_main and log_events will have logs! --------- beginning of /dev/log/main E/WifiHW ( 441): wifi_send_command : SCAN_RESULTS ; interface index=0; E/WifiHW ( 441): wifi_send_command : AP_SCAN 1 ; interface index=0; E/WifiHW ( 441): wifi_send_command : SCAN_RESULTS ; interface index=0; E/dalvikvm( 756): GC_CONCURRENT freed 1809K, 27% free 19489K/26695K, paused 16ms+5ms, total 109ms E/WifiHW ( 441): wifi_send_command : SCAN ; interface index=0; E/WifiHW ( 441): wifi_send_command : AP_SCAN 1 ; interface index=0; E/WifiHW ( 441): wifi_send_command : SCAN_RESULTS ; interface index=0; E/dalvikvm( 756): GC_CONCURRENT freed 1820K, 27% free 19490K/26695K, paused 16ms+3ms, total 102ms E/WifiHW ( 441): wifi_send_command : AP_SCAN 1 ; interface index=0; E/WifiHW ( 441): wifi_send_command : SCAN_RESULTS ; interface index=0; 过滤指定标签等级日志

adb logcat WifiHW:D *:S

命令含义 : 输出10条日志, 日志是 标签为 WifiHW, 并且优先级 Debug(调试) 等级以上的级别的日志; 注意 *:S : 如果没有 *S 就会输出错误;

操作过程及输出结果:

octopus@octopus:~$ adb logcat WifiHW:D *:S Note: log switch off, only log_main and log_events will have logs! --------- beginning of /dev/log/main E/WifiHW ( 441): wifi_send_command : SCAN_RESULTS ; interface index=0; E/WifiHW ( 441): wifi_send_command : AP_SCAN 1 ; interface index=0; E/WifiHW ( 441): wifi_send_command : SCAN_RESULTS ; interface index=0; E/WifiHW ( 441): wifi_send_command : AP_SCAN 1 ; interface index=0; E/WifiHW ( 441): wifi_send_command : SCAN_RESULTS ; interface index=0; E/WifiHW ( 441): wifi_send_command : AP_SCAN 1 ; interface index=0; E/WifiHW ( 441): wifi_send_command : SCAN_RESULTS ; interface index=0; 可以同时设置多个过滤器

adb logcat WifiHW:D dalvikvm:I *:S

输出 WifiHW 标签 的 Debug 以上级别 和 dalvikvm 标签的 Info 以上级别的日志

操作过程及输出结果:

octopus@octopus:~$ adb logcat WifiHW:D dalvikvm:I *:S Note: log switch off, only log_main and log_events will have logs! --------- beginning of /dev/log/main E/WifiHW ( 441): wifi_send_command : AP_SCAN 1 ; interface index=0; E/WifiHW ( 441): wifi_send_command : SCAN_RESULTS ; interface index=0; E/dalvikvm( 756): GC_CONCURRENT freed 1820K, 27% free 19490K/26695K, paused 17ms+2ms, total 110ms E/WifiHW ( 441): wifi_send_command : AP_SCAN 1 ; interface index=0; E/WifiHW ( 441): wifi_send_command : SCAN_RESULTS ; interface index=0; E/WifiHW ( 441): wifi_send_command : AP_SCAN 1 ; interface index=0; E/WifiHW ( 441): wifi_send_command : SCAN_RESULTS ; interface index=0; E/dalvikvm( 756): GC_CONCURRENT freed 1810K, 27% free 19489K/26695K, paused 17ms+5ms, total 108ms E/WifiHW ( 441): wifi_send_command : AP_SCAN 1 ; interface index=0; E/WifiHW ( 441): wifi_send_command : SCAN_RESULTS ; interface index=0; 使用管道过滤日志 过滤固定字符串

adb logcat | grep Wifi

只要命令行出现的日志都可以过滤, 不管是不是标签

输出结果:

octopus@octopus:~$ adb logcat | grep Wifi E/WifiHW ( 441): wifi_send_command : AP_SCAN 1 ; interface index=0; E/WifiHW ( 441): wifi_send_command : SCAN_RESULTS ; interface index=0; E/WifiHW ( 441): wifi_send_command : SCAN ; interface index=0; E/WifiHW ( 441): wifi_send_command : AP_SCAN 1 ; interface index=0; E/WifiHW ( 441): wifi_send_command : SCAN_RESULTS ; interface index=0; E/WifiHW ( 441): wifi_send_command : AP_SCAN 1 ; interface index=0; E/WifiHW ( 441): wifi_send_command : SCAN_RESULTS ; interface index=0; 过滤字符串忽略大小写

adb logcat | grep -i wifi

使用正则表达式匹配 分析日志

该日志开头两个字符是 “V/”, 后面开始就是标签, 写一个正则表达式 “^..ActivityManager”, 就可以匹配日志中的 “V/ActivityManager” 字符串;

正则表达式过滤日志

adb logcat | grep “^..Activity” ;

整理完毕,功能要比eclipse上面的健全多了,希望能对大家提供帮助



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