eclipse 自帶的 LogCat 工具太垃圾了, 開始用 adb logcat 在終端查看日志;
<a name="t0" style="box-sizing: border-box; background: transparent; color: rgb(79, 161, 219); text-decoration: none; margin: 0px; padding: 0px; font-weight: 400; outline: 0px;"></a><a target="_blank" name="t0" style="box-sizing: border-box; background: transparent; color: rgb(79, 161, 219); text-decoration: none; margin: 0px; padding: 0px; font-weight: 400; outline: 0px;"></a>1. 解析 adb logcat 的幫助信息
在命令行中輸入 adb logcat --help 命令, 就可以顯示該命令的幫助信息;
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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 <filename> Log to file. Default to stdout
-r [<kbytes>] Rotate log every kbytes. (16 if unspecified). Requires -f
-n <count> Sets max number of rotated logs to <count>, default 4
-v <format> Sets the log print format, where <format> 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 <count> print only the most recent <count> lines (implies -d)
-g get the size of the log's ring buffer and exit
-b <buffer> 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
<tag>[:priority]
where <tag> 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 <tag> by itself means <tag>: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 [選項(xiàng)] [過濾項(xiàng)], 其中 選項(xiàng) 和 過濾項(xiàng) 在 中括號(hào) [] 中, 說明這是可選的;
<a name="t1" style="box-sizing: border-box; background: transparent; color: rgb(79, 161, 219); text-decoration: none; margin: 0px; padding: 0px; font-weight: 400; outline: 0px;"></a><a target="_blank" name="t1" style="box-sizing: border-box; background: transparent; color: rgb(79, 161, 219); text-decoration: none; margin: 0px; padding: 0px; font-weight: 400; outline: 0px;"></a>(1) 選項(xiàng)解析
選項(xiàng)解析 :
-- "-s"選項(xiàng) : 設(shè)置輸出日志的標(biāo)簽, 只顯示該標(biāo)簽的日志;
-- "-f"選項(xiàng) : 將日志輸出到文件, 默認(rèn)輸出到標(biāo)準(zhǔn)輸出流中, -f 參數(shù)執(zhí)行不成功;
-- "-r"選項(xiàng) : 按照每千字節(jié)輸出日志, 需要 -f 參數(shù), 不過這個(gè)命令沒有執(zhí)行成功;
-- "-n"選項(xiàng) : 設(shè)置日志輸出的最大數(shù)目, 需要 -r 參數(shù), 這個(gè)執(zhí)行 感覺 跟 adb logcat 效果一樣;
-- "-v"選項(xiàng) : 設(shè)置日志的輸出格式, 注意只能設(shè)置一項(xiàng);
-- "-c"選項(xiàng) : 清空所有的日志緩存信息;
-- "-d"選項(xiàng) : 將緩存的日志輸出到屏幕上, 并且不會(huì)阻塞;
-- "-t"選項(xiàng) : 輸出最近的幾行日志, 輸出完退出, 不阻塞;
-- "-g"選項(xiàng) : 查看日志緩沖區(qū)信息;
-- "-b"選項(xiàng) : 加載一個(gè)日志緩沖區(qū), 默認(rèn)是 main, 下面詳解;
-- "-B"選項(xiàng) : 以二進(jìn)制形式輸出日志;
.
輸出指定標(biāo)簽內(nèi)容 :
-- "-s"選項(xiàng) : 設(shè)置默認(rèn)的過濾器, 如 我們想要輸出 "System.out" 標(biāo)簽的信息, 就可以使用 adb logcat -s System.out 命令;
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- 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
輸出日志信息到文件 :
-- "-f"選項(xiàng) : 該選向后面跟著輸入日志的文件, 使用 adb logcat -f log 命令, 會(huì)出現(xiàn)錯(cuò)誤, 這里我們不推薦使用該選項(xiàng);
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- octopus@octopus:~$ adb logcat -f log
- couldn't open output file: Read-only file system
-- ">"輸出 : ">" 后面跟著要輸出的日志文件, 可以將 logcat 日志輸出到文件中, 使用 adb logcat > log 命令, 使用 more log 命令查看日志信息;
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- 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 的日志輸出格式 :
-- "-v"選項(xiàng) : 使用 adb logcat -v time 命令, 可以啥看日志的輸出時(shí)間;
-- "brief"格式 : 這是默認(rèn)的日志格式 " 優(yōu)先級(jí) / 標(biāo)簽 (進(jìn)程ID) : 日志信息 ", 使用 adb logcat -v prief 命令;
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- 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 : " 優(yōu)先級(jí) (進(jìn)程ID) : 日志信息 ", 使用 adb logcat -v process 命令;
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- 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"格式 : " 優(yōu)先級(jí) / 標(biāo)簽 : 日志信息", 使用 adb logcat -v tag 命令;
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- 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"格式 : " 優(yōu)先級(jí) ( 進(jìn)程ID : 線程ID) 標(biāo)簽 : 日志內(nèi)容 ", 使用 adb logcat -v tag 命令;
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- 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"格式 : 只輸出日志信息, 不附加任何其他 信息, 如 優(yōu)先級(jí) 標(biāo)簽等, 使用 adb logcat -v raw 命令;
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- 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"格式 : "日期 時(shí)間 優(yōu)先級(jí) / 標(biāo)簽 (進(jìn)程ID) : 進(jìn)程名稱 : 日志信息 " , 使用 adb logcat -v time 命令;
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- 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"格式 : " [ 日期 時(shí)間 進(jìn)程ID : 線程ID 優(yōu)先級(jí) / 標(biāo)簽] 日志信息 ", 輸出以上提到的所有的頭信息, 使用 adb logcat -v long 命令;
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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 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
清空日志緩存信息 : 使用 adb logcat -c 命令, 可以將之前的日志信息清空, 重新開始輸出日志信息;
將緩存日志輸出 : 使用 adb logcat -d 命令, 輸出命令, 之后推出命令, 不會(huì)進(jìn)行阻塞;
輸出最近的日志 : 使用 adb logcat -t 5 命令, 可以輸出最近的5行日志, 并且不會(huì)阻塞;
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- 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:~$
查看日志緩沖區(qū)信息 : 使用 adb logcat -g 命令;
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- 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:~$
加載日志緩沖區(qū) : 使用 adb logcat -b 緩沖區(qū)類型 命令;
--** Android中的日志緩沖區(qū)** : system緩沖區(qū) - 與系統(tǒng)相關(guān)的日志信息, radio緩沖區(qū) - 廣播電話相關(guān)的日志信息, events緩沖區(qū) - 事件相關(guān)的日志信息, main緩沖區(qū) - 默認(rèn)的緩沖區(qū);
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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()=IDLE
- I/MUXD (23591): [gsm0710muxd] 3426:main(): Frames received/dropped: 18242/0
- octopus@octopus:~$
- octopus@octopus:~$ adb logcat -b main -t 5
- 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
- octopus@octopus:~$
- octopus@octopus:~$ adb logcat -b system -t 5
- 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])
- 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): [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]
- octopus@octopus:~$
以二進(jìn)制形式輸出日志 : 使用 adb logcat -B 命令;
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- octopus@octopus:~$ adb logcat -B -t 5
- O???_?3ZS??4?gps_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???_?3ZSEGE?gps_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
- 7EE?3ZSo?Y?ADB_SERVICESadb: unable to open /proc/17706/oom_adj
<a name="t2" style="box-sizing: border-box; background: transparent; color: rgb(79, 161, 219); text-decoration: none; margin: 0px; padding: 0px; font-weight: 400; outline: 0px;"></a><a target="_blank" name="t2" style="box-sizing: border-box; background: transparent; color: rgb(79, 161, 219); text-decoration: none; margin: 0px; padding: 0px; font-weight: 400; outline: 0px;"></a>(2) 過濾項(xiàng)解析
過濾項(xiàng)格式 : <tag>[:priority] , 標(biāo)簽:日志等級(jí), 默認(rèn)的日志過濾項(xiàng)是 " *:I " ;
-- V : Verbose (明細(xì));
-- D : Debug (調(diào)試);
-- I : Info (信息);
-- W : Warn (警告);
--** E** : Error (錯(cuò)誤);
--** F **: Fatal (嚴(yán)重錯(cuò)誤);
-- S : Silent(Super all output) (最高的優(yōu)先級(jí), 可能不會(huì)記載東西);
過濾指定等級(jí)日志 : 使用** adb logcat 10 :E* 命令, 顯示 Error 以上級(jí)別的日志;
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<embed id="ZeroClipboardMovie_16" src="http://static.blog.csdn.net/scripts/ZeroClipboard/ZeroClipboard.swf" loop="false" menu="false" quality="best" bgcolor="#ffffff" width="16" height="16" name="ZeroClipboardMovie_16" align="middle" allowscriptaccess="always" allowfullscreen="false" type="application/x-shockwave-flash" pluginspage="http://www.macromedia.com/go/getflashplayer" flashvars="id=16&width=16&height=16" wmode="transparent" style="box-sizing: border-box;">
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;
過濾指定標(biāo)簽等級(jí)日志 : 使用 *adb logcat WifiHW:D :S 命令進(jìn)行過濾;
-- 命令含義 : 輸出10條日志, 日志是 標(biāo)簽為 WifiHW, 并且優(yōu)先級(jí) Debug(調(diào)試) 等級(jí)以上的級(jí)別的日志;
-- *注意 :S : 如果沒有 *S 就會(huì)輸出錯(cuò)誤;
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<embed id="ZeroClipboardMovie_17" src="http://static.blog.csdn.net/scripts/ZeroClipboard/ZeroClipboard.swf" loop="false" menu="false" quality="best" bgcolor="#ffffff" width="16" height="16" name="ZeroClipboardMovie_17" align="middle" allowscriptaccess="always" allowfullscreen="false" type="application/x-shockwave-flash" pluginspage="http://www.macromedia.com/go/getflashplayer" flashvars="id=17&width=16&height=16" wmode="transparent" style="box-sizing: border-box;">
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;
可以同時(shí)設(shè)置多個(gè)過濾器 : 使用 *adb logcat WifiHW:D dalvikvm:I :S 命令, 輸出 WifiHW 標(biāo)簽 的 Debug 以上級(jí)別 和 dalvikvm 標(biāo)簽的 Info 以上級(jí)別的日志;
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<embed id="ZeroClipboardMovie_18" src="http://static.blog.csdn.net/scripts/ZeroClipboard/ZeroClipboard.swf" loop="false" menu="false" quality="best" bgcolor="#ffffff" width="16" height="16" name="ZeroClipboardMovie_18" align="middle" allowscriptaccess="always" allowfullscreen="false" type="application/x-shockwave-flash" pluginspage="http://www.macromedia.com/go/getflashplayer" flashvars="id=18&width=16&height=16" wmode="transparent" style="box-sizing: border-box;">
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;
<a name="t3" style="box-sizing: border-box; background: transparent; color: rgb(79, 161, 219); text-decoration: none; margin: 0px; padding: 0px; font-weight: 400; outline: 0px;"></a><a target="_blank" name="t3" style="box-sizing: border-box; background: transparent; color: rgb(79, 161, 219); text-decoration: none; margin: 0px; padding: 0px; font-weight: 400; outline: 0px;"></a>2. 使用管道過濾日志
<a name="t4" style="box-sizing: border-box; background: transparent; color: rgb(79, 161, 219); text-decoration: none; margin: 0px; padding: 0px; font-weight: 400; outline: 0px;"></a><a target="_blank" name="t4" style="box-sizing: border-box; background: transparent; color: rgb(79, 161, 219); text-decoration: none; margin: 0px; padding: 0px; font-weight: 400; outline: 0px;"></a>(1) 過濾固定字符串
過濾固定字符串 : 只要命令行出現(xiàn)的日志都可以過濾, 不管是不是標(biāo)簽;
-- 命令 : adb logcat | grep Wifi ;
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<embed id="ZeroClipboardMovie_19" src="http://static.blog.csdn.net/scripts/ZeroClipboard/ZeroClipboard.swf" loop="false" menu="false" quality="best" bgcolor="#ffffff" width="16" height="16" name="ZeroClipboardMovie_19" align="middle" allowscriptaccess="always" allowfullscreen="false" type="application/x-shockwave-flash" pluginspage="http://www.macromedia.com/go/getflashplayer" flashvars="id=19&width=16&height=16" wmode="transparent" style="box-sizing: border-box;">
- 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;
過濾字符串忽略大小寫 : adb logcat | grep -i wifi ;
<a name="t5" style="box-sizing: border-box; background: transparent; color: rgb(79, 161, 219); text-decoration: none; margin: 0px; padding: 0px; font-weight: 400; outline: 0px;"></a><a target="_blank" name="t5" style="box-sizing: border-box; background: transparent; color: rgb(79, 161, 219); text-decoration: none; margin: 0px; padding: 0px; font-weight: 400; outline: 0px;"></a>(2) 使用正則表達(dá)式匹配
分析日志 : 該日志開頭兩個(gè)字符是 "V/", 后面開始就是標(biāo)簽, 寫一個(gè)正則表達(dá)式 "^..ActivityManager", 就可以匹配日志中的 "V/ActivityManager" 字符串;
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<embed id="ZeroClipboardMovie_20" src="http://static.blog.csdn.net/scripts/ZeroClipboard/ZeroClipboard.swf" loop="false" menu="false" quality="best" bgcolor="#ffffff" width="16" height="16" name="ZeroClipboardMovie_20" align="middle" allowscriptaccess="always" allowfullscreen="false" type="application/x-shockwave-flash" pluginspage="http://www.macromedia.com/go/getflashplayer" flashvars="id=20&width=16&height=16" wmode="transparent" style="box-sizing: border-box;">
- V/ActivityManager( 574): getTasks: max=1, flags=0, receiver=null
**正則表達(dá)式過濾日志 **: 使用上面的正則表達(dá)式組成命令 adb logcat | grep "^..Activity" ;