adblogcat命令行用法|江阴雨辰互联

2023年7月10日发(作者：)

adblogcat命令⾏⽤法本⽂为转载。作者 :万境绝尘

eclipse ⾃带的 LogCat ⼯具太垃圾了, 开始⽤ adb logcat 在终端查看⽇志;1. 解析 adb logcat 的帮助信息在命令⾏中输⼊ adb logcat --help 命令, 就可以显⽰该命令的帮助信息;[plain]

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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"选项 : 设置默认的过滤器, 如我们想要输出 "" 标签的信息, 就可以使⽤adb logcat -s 命令;[plain]

octopus@octopus:~$ adb logcat -s

--------- beginning of /dev/log/system

--------- beginning of /dev/log/main

I/(22930): GSM -91

I/(22930): SignalStrength issssssssss : -91

I/(22930): GSM -91

I/(22930): SignalStrength issssssssss : -91

I/(22930): Supervisor Thread

I/(22930): Got run mode

输出⽇志信息到⽂件 :

-- "-f"选项 : 该选向后⾯跟着输⼊⽇志的⽂件, 使⽤adb logcat -f /sdcard/ 命令, 注意这个log⽂件是输出到⼿机上，需要指定合适的路径。[plain]

1. octopus@octopus:~$ adb logcat -f /sdcard/

这个参数对对不能⼀直⽤电脑连着⼿机收集⽇志的场景⾮常有⽤，其实android shell下也有⼀个相同参数的logcat命令。使⽤如下命令可以执⾏后断开PC和⼿机持续收集LOG。[plain]

shell@pc$ adb shell

shell@android$ logcat -f /sdcard/ & #这⾥的&符号表⽰后台执⾏，别少了。

shell@android$ exit 注：（1）以上shell@pc$ 指在pc的shell终端执⾏后边的命令， shell@android$ 表⽰在⼿机shell中执⾏后边的命令l（2）⼀定注意合适的时候需要停⽌掉以上命令，否则再次使⽤相同命令的时候，就会有两个logcat写同⼀个⽂件了停⽌⽅法: adb shell kill -9

其中logcat_pid 通过如下命令获取 adb shell ps | grep logcat # linux 平台 adb shell ps | findstr "logcat" #Windows平台-- ">"输出 : ">" 后⾯跟着要输出的⽇志⽂件, 可以将 logcat ⽇志输出到⽂件中, 使⽤adb logcat > log 命令, 使⽤more log 命令查看⽇志信息;[plain]

octopus@octopus:~$ adb logcat > log

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): gs/.Settings: task=TaskRecord{42392278 #448 A gs U 0}

V/ActivityManager( 500): We have pending thumbnails: null

-- " -d -f " 组合命令：可以将⽇志保存到⼿机上的指定位置，对不能⼀直⽤电脑连着⼿机收集⽇志的场景⾮常有⽤。[plain]

1. adb logcat -d -v /sdcard/

指定 logcat 的⽇志输出格式 :

-- "-v"选项 : 使⽤adb logcat -v time 命令, 可以啥看⽇志的输出时间; 使⽤adb logcat -v threadtime 命令, 可以啥看⽇志的输出时间和线程信息;-- "brief"格式 : 这是默认的⽇志格式" 优先级 / 标签 (进程ID) : ⽇志信息 ", 使⽤adb logcat -v prief命令;[plain]

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"格式 : " 优先级 (进程ID) : ⽇志信息 " , 使⽤ adb logcat -v process 命令;[plain]

octopus@octopus:~$ adb logcat -v process

--------- beginning of /dev/log/system

D( 500) MobileDataStateReceiver received: ACTION_ANY_DATA_CONNECTION_STATE_CHANGED_MOBILE [wap] (MobileDataStateD( 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)

V( 500) Broadcast: Intent { act=_DATA_STATE_MOBILE flg=0x10 (has extras) } ordered=true userid=0 (ActivityM-- "tag"格式 : " 优先级 / 标签 : ⽇志信息" , 使⽤ adb logcat -v tag 命令;[plain]

octopus@octopus:~$ adb logcat -v tag

--------- beginning of /dev/log/system

I/PowerManagerService: setBrightness mButtonLight 0.

D/PowerManagerService: handleSandman: canDream=true, mWakefulness=Awake

D/PowerManagerService: updateScreenStateLocked: mDisplayReady=true, newScreenState=2, mWakefulness=1, mWakeLockSummary=-- "thread"格式 : " 优先级 ( 进程ID : 线程ID) 标签 : ⽇志内容 " , 使⽤ adb logcat -v tag 命令;[plain]

octopus@octopus:~$ adb logcat -v thread

--------- beginning of /dev/log/system

V( 500: 2141) getTasks: max=1, flags=0, receiver=null

V( 500: 2141) er/.Launcher: task=TaskRecord{41dccc20 #425 A er U 0}

V( 500: 2141) We have pending thumbnails: null

V( 500: 2140) getTasks: max=1, flags=0, receiver=null

-- "raw"格式 : 只输出⽇志信息, 不附加任何其他信息, 如优先级标签等, 使⽤ adb logcat -v raw 命令;[plain]

octopus@octopus:~$ adb logcat -v raw

--------- beginning of /dev/log/system

notifications are enabled for ty

Assigned score=0 to Notification(pri=0 contentView=ty/0x7f030052 vibrate=null sound=null defaults=0x0 flags=0x2 kind[null])

Native set alarm :Alarm{41e1ca00 type 3 ty}

reset poweroff alarm none

-- "time"格式 : "⽇期时间优先级 / 标签 (进程ID) : 进程名称 : ⽇志信息 " , 使⽤ adb logcat -v time 命令;[plain]

octopus@octopus:~$ adb logcat -v time

--------- beginning of /dev/log/system

04-25 17:18:13.019 V/ActivityManager( 500): Broadcast sticky: Intent { act=_STR flg=0x10 (has extras) } ordered=false1

4. 04-25 17:18:13.157 V/NotificationService( 500): enqueueNotificationInternal: pkg=ty id=1020 notification=Notification(pri=0[null])

04-25 17:18:13.158 V/NotificationService( 500): notifications are enabled for ty 5.

6. 04-25 17:18:13.158 V/NotificationService( 500): Assigned score=0 to Notification(pri=0 contentView=ty/0x7f030052 vibrate[null])

04-25 17:18:13.555 V/ActivityManager( 500): getTasks: max=1, flags=0, receiver=null 7.

-- "long"格式 : " [ ⽇期时间进程ID : 线程ID 优先级 / 标签] ⽇志信息 " , 输出以上提到的所有的头信息, 使⽤ adb logcat -v long 命令;[plain]

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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 onyProvider 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 : 使⽤ adb logcat -c 命令, 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 : 使⽤ adb logcat -d 命令, 输出命令, 之后推出命令, 不会进⾏阻塞;输出最近的⽇志 : 使⽤adb logcat -t 5 命令, 可以输出最近的5⾏⽇志, 并且不会阻塞;[plain]

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 : 使⽤ adb logcat -g 命令;[plain]

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 : 使⽤ adb logcat -b 缓冲区类型命令;-- 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;[plain]

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octopus@octopus:~$ adb logcat -b radio -t 5

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()=I/MUXD (23591): [gsm0710muxd] 3426:main(): Frames received/dropped: 18242/0

octopus@octopus:~$

octopus@octopus:~$ adb logcat -b main -t 5

D/NotificationService( 500): =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

octopus@octopus:~$

octopus@octopus:~$ adb logcat -b system -t 5

D/PowerManagerService( 500): handleSandman: canDream=false, mWakefulness=Asleep

D/PowerManagerService( 500): updateScreenStateLocked: mDisplayReady=true, newScreenState=0, mWakefulness=0, mWakeLockSumV/NotificationService( 500): enqueueNotificationInternal: pkg=ty id=1020 notification=Notification(pri=0 contentView=co[null])

V/NotificationService( 500): notifications are enabled for ty

V/NotificationService( 500): Assigned score=0 to Notification(pri=0 contentView=ty/0x7f030052 vibrate=null sound=null[null])

octopus@octopus:~$

octopus@octopus:~$ adb logcat -b event -t 5

Unable to open log device '/dev/log/event': No such file or directory

octopus@octopus:~$ adb logcat -b events -t 5

I/notification_cancel( 500): [ty,1026,NULL,0,0,64]

I/notification_enqueue( 500): [ty,1020,NULL,0,Notification(pri=0 contentView=ty/0x7f030052 vibrate=[null])]

I/notification_cancel( 500): [ty,1026,NULL,0,0,64]

I/notification_enqueue( 500): [ty,1020,NULL,0,Notification(pri=0 contentView=ty/0x7f030052 vibrate=[null])]

I/notification_cancel( 500): [ty,1026,NULL,0,0,64]

octopus@octopus:~$

以⼆进制形式输出⽇志 : 使⽤ adb logcat -B 命令;[plain]

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 : 使⽤ adb logcat 10 *:E 命令, 显⽰ Error 以上级别的⽇志;[plain]

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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 : 使⽤ adb logcat WifiHW:D *:S 命令进⾏过滤;-- 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;[plain]

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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 : 使⽤adb logcat WifiHW:D dalvikvm:I *:S 命令, 输出 WifiHW 标签的 Debug 以上级别和 dalvikvm 标签的 Info 以上级别的⽇志;[plain]

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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;

2. 使⽤管道过滤⽇志(1) 过滤固定字符串过滤固定字符串 : 只要命令⾏出现的⽇志都可以过滤, 不管是不是标签;-- 命令 : adb logcat | grep Wifi ;[plain]

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 ;(2) 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;[plain]

1. V/ActivityManager( 574): getTasks: max=1, flags=0, receiver=null

正则表达式过滤⽇志: 使⽤上⾯的正则表达式组成命令 adb logcat | grep "^..Activity" ;作者 : 万境绝尘

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