我有一个带有以下输出的命令dumpsys power
:
POWER MANAGER (dumpsys power)
Power Manager State: mDirty=0x0
mWakefulness=Awake #
mWakefulnessChanging=false
mIsPowered=false
mPlugType=0
mBatteryLevel=67 #
mBatteryLevelWhenDreamStarted=0
mDockState=0
mStayOn=false #
mProximityPositive=false
mBootCompleted=true #
mSystemReady=true #
mHalAutoSuspendModeEnabled=false
mHalInteractiveModeEnabled=true
mWakeLockSummary=0x0
mUserActivitySummary=0x1
mRequestWaitForNegativeProximity=false
mSandmanScheduled=false
mSandmanSummoned=false
mLowPowerModeEnabled=false #
mBatteryLevelLow=false #
mLastWakeTime=134887327 (59454 ms ago) #
mLastSleepTime=134881809 (64972 ms ago) #
mLastUserActivityTime=134946670 (111 ms ago)
mLastUserActivityTimeNoChangeLights=134794061 (152720 ms ago)
mLastInteractivePowerHintTime=134946670 (111 ms ago)
mLastScreenBrightnessBoostTime=0 (134946781 ms ago)
mScreenBrightnessBoostInProgress=false
mDisplayReady=true #
mHoldingWakeLockSuspendBlocker=false
mHoldingDisplaySuspendBlocker=true
Settings and Configuration:
mDecoupleHalAutoSuspendModeFromDisplayConfig=false
mDecoupleHalInteractiveModeFromDisplayConfig=true
mWakeUpWhenPluggedOrUnpluggedConfig=true
mWakeUpWhenPluggedOrUnpluggedInTheaterModeConfig=false
mTheaterModeEnabled=false
mSuspendWhenScreenOffDueToProximityConfig=false
mDreamsSupportedConfig=true
mDreamsEnabledByDefaultConfig=true
mDreamsActivatedOnSleepByDefaultConfig=false
mDreamsActivatedOnDockByDefaultConfig=true
mDreamsEnabledOnBatteryConfig=false
mDreamsBatteryLevelMinimumWhenPoweredConfig=-1
mDreamsBatteryLevelMinimumWhenNotPoweredConfig=15
mDreamsBatteryLevelDrainCutoffConfig=5
mDreamsEnabledSetting=false
mDreamsActivateOnSleepSetting=false
mDreamsActivateOnDockSetting=true
mDozeAfterScreenOffConfig=true
mLowPowerModeSetting=false
mAutoLowPowerModeConfigured=false
mAutoLowPowerModeSnoozing=false
mMinimumScreenOffTimeoutConfig=10000
mMaximumScreenDimDurationConfig=7000
mMaximumScreenDimRatioConfig=0.20000005
mScreenOffTimeoutSetting=60000 #
mSleepTimeoutSetting=-1
mMaximumScreenOffTimeoutFromDeviceAdmin=2147483647 (enforced=false)
mStayOnWhilePluggedInSetting=0
mScreenBrightnessSetting=102
mScreenAutoBrightnessAdjustmentSetting=-1.0
mScreenBrightnessModeSetting=1
mScreenBrightnessOverrideFromWindowManager=-1
mUserActivityTimeoutOverrideFromWindowManager=-1
mTemporaryScreenBrightnessSettingOverride=-1
mTemporaryScreenAutoBrightnessAdjustmentSettingOverride=NaN
mDozeScreenStateOverrideFromDreamManager=0
mDozeScreenBrightnessOverrideFromDreamManager=-1
mScreenBrightnessSettingMinimum=10
mScreenBrightnessSettingMaximum=255
mScreenBrightnessSettingDefault=102
Sleep timeout: -1 ms
Screen off timeout: 60000 ms
Screen dim duration: 7000 ms
Wake Locks: size=0 Suspend Blockers: size=4
PowerManagerService.WakeLocks: ref count=0
PowerManagerService.Display: ref count=1
PowerManagerService.Broadcasts: ref count=0
PowerManagerService.WirelessChargerDetector: ref count=0
Display Power: state=ON #
我想以的格式将行标记为#
mScreenOffTimeoutSetting=60000
mDisplayReady=true
***
ScreenOfftimeoutSetting = 60000
DisplayReady = true
命令输出可能因设备而异,有些行可能不在那里或在不同的位置。因此,如果搜索到的行不存在,则不应生成任何错误。
您想要什么还不清楚。Aou可以使用sed从文件中提取变量,并对它们执行任何操作。这里有一个例子:
sed -n -e 's/^mSomeName=(.*)/newVariable=1/p' -e 's/^mOtherName=.*+(.*)/newVariable2=1/p' myFile
说明:
- 默认情况下
-n
不输出任何内容 - CCD_ 3的一个表达式如下。这是必需的,因为我们有多个表达式
s/^mSomeName=(.*)/newVariable=1/p
如果文件以mSomeName=
开头(^
),则捕获后面的内容((.*)
),将该行替换为newVariable=1
,其中1
是捕获的内容,并将其打印出来(p
)- 的/^mOtherName=+(.)/newVariable2=\1/p'类似于上一个表达式,但将捕获
+
符号后的内容并将其打印在newVariable2
后面
这样做类似于:
$ sed -n -e 's/^mSomeName=(.*)/newVariable=1/p' -e 's/^mOtherName=.*+(.*)/newVariable2=1/p' <<<$'mSomeName=SomeValuenmOtherName=OtherValue+Somethingelse'
newVariable=SomeValue
newVariable2=Somethingelse
<<<$'...'
是将换行符为n
的字符串直接传递给bash中的命令的一种方式。您可以将其替换为文件。这个命令只输出一个字符串,不会有任何更改。
如果您在bash变量中需要它们,请使用eval:
$ eval $(sed -n -e 's/^mSomeName=(.*)/newVariable=1/p' -e 's/^mOtherName=.*+(.*)/newVariable2=1/p' <<<$'mSomeName=SomeValuenmOtherName=OtherValue+Somethingelse')
$ echo newVariable=$newVariable - newVariable2=$newVariable2
newVariable=SomeValue - newVariable2=Somethingelse
eval将执行字符串,在这种情况下设置变量值:
$ eval a=1
$ echo $a
1
如果只想使用Grep命令,可以使用-A(After)和-B(Before)选项和管道。
这是一个有两行的例子。
文件test.txt:
test
aieauieaui
test
caieaieaipe
mSomeName=SomeValue
mOtherName=OtherValue+Somethingelse
nothing
blabla
mSomeName=SomeValue2
mOtherName=OtherValue+Somethingelse2
要使用的命令:
grep -A 1 'mSomeName' test.txt |grep -B 1 'mOtherName'
输出:
mSomeName=SomeValue
mOtherName=OtherValue+Somethingelse
--
mSomeName=SomeValue2
mOtherName=OtherValue+Somethingelse2