ADB是什么，做android开发的没有不知道的。
window下执行cmd，输入adb help就会打印adb都可以做的事情，包含 adb push 。。adb pull 。。 adb devices adb install。。。 等等。。而且一搜一大把。
当中有一个命令叫做 adb shell，android是基于linux的，shell模式下linux的命令但是很多的，android去掉了很多linux的命令，那么从这写命令里面又可以发现什么宝藏呢？寻宝之旅开启！！
首先linux的shell模式有很多命令，比如 ls cd mkdir su ps vim等等很多控制命令，这些在android上都是支持的。可是它是android的内核啊，应该有些特殊点的吧。
通过命令cd /system/bin 进入bin文件夹查看一下。
# cd /system/bin cd /system/bin # ls ls BlobCache_test InputChannel_test InputDispatcher_test InputEvent_test InputPublisherAndCons InputReader_test Looper_test ObbFile_test String8_test Unicode_test ZipFileRO_test adb am app_process applypatch applypatch_static ash audioloop bmgr bootanimation bu bugreport cat check_prereq chmod chown cmp dalvikvm date dd debuggerd decoder dexopt df dhcpcd dmesg dumpstate dumpsys flash_image fsck_msdos gdbjithelper gdbserver getevent getprop gzip hd id ifconfig iftop ime input insmod installd ioctl ionice ip6tables iptables keystore keystore_cli kill linker ln log logcat logwrapper ls lsmod lsof mediaserver mkdir monkey mount mtpd mv nandread ndc netcfg netd netstat newfs_msdos notify omx_tests ping ping6 pm pppd printenv ps qemu-props qemud r racoon radiooptions reboot record recordvideo recovery renice rild rm rmdir rmmod route run-as schedtest schedtop screencap screenshot sdcard sendevent sensorservice service servicemanager setconsole setprop sf2 sh showlease simg2img skia_test sleep smd stagefright start stop stream surfaceflinger svc sync system_server testid3 toolbox top touch umount updater uptime vdc vmstat vold watchprops wipe #
噢 my god 命令还是非常多的嘛！
我们一般能够通过 命令 -h 来查看介绍，比如：
# am -h
am -h
usage: am [subcommand] [options]
usage: am start [-D] [-W] [-P <FILE>] [--start-profiler <FILE>]
[--R COUNT] [-S] <INTENT>
am startservice <INTENT>
am force-stop <PACKAGE>
am kill <PACKAGE>
am kill-all
am broadcast <INTENT>
am instrument [-r] [-e <NAME> <VALUE>] [-p <FILE>] [-w]
[--no-window-animation] <COMPONENT>
am profile [looper] start <PROCESS> <FILE>
am profile [looper] stop [<PROCESS>]
am dumpheap [flags] <PROCESS> <FILE>
am set-debug-app [-w] [--persistent] <PACKAGE>
am clear-debug-app
am monitor [--gdb <port>]
am screen-compat [on|off] <PACKAGE>
am display-size [reset|MxN]
am to-uri [INTENT]
am to-intent-uri [INTENT]
am start: start an Activity. Options are:
-D: enable debugging
-W: wait for launch to complete
--start-profiler <FILE>: start profiler and send results to <FILE>
-P <FILE>: like above, but profiling stops when app goes idle
-R: repeat the activity launch <COUNT> times. Prior to each repeat,
the top activity will be finished.
-S: force stop the target app before starting the activity
am startservice: start a Service.
am force-stop: force stop everything associated with <PACKAGE>.
am kill: Kill all processes associated with <PACKAGE>. Only kills.
processes that are safe to kill -- that is, will not impact the user
experience.
am kill-all: Kill all background processes.
am broadcast: send a broadcast Intent.
am instrument: start an Instrumentation. Typically this target <COMPONENT>
is the form <TEST_PACKAGE>/<RUNNER_CLASS>. Options are:
-r: print raw results (otherwise decode REPORT_KEY_STREAMRESULT). Use with
[-e perf true] to generate raw output for performance measurements.
-e <NAME> <VALUE>: set argument <NAME> to <VALUE>. For test runners a
common form is [-e <testrunner_flag> <value>[,<value>...]].
-p <FILE>: write profiling data to <FILE>
-w: wait for instrumentation to finish before returning. Required for
test runners.
--no-window-animation: turn off window animations will running.
am profile: start and stop profiler on a process.
am dumpheap: dump the heap of a process. Options are:
-n: dump native heap instead of managed heap
am set-debug-app: set application <PACKAGE> to debug. Options are:
-w: wait for debugger when application starts
--persistent: retain this value
am clear-debug-app: clear the previously set-debug-app.
am monitor: start monitoring for crashes or ANRs.
--gdb: start gdbserv on the given port at crash/ANR
am screen-compat: control screen compatibility mode of <PACKAGE>.
am display-size: override display size.
am to-uri: print the given Intent specification as a URI.
am to-intent-uri: print the given Intent specification as an intent: URI.
<INTENT> specifications include these flags and arguments:
[-a <ACTION>] [-d <DATA_URI>] [-t <MIME_TYPE>]
[-c <CATEGORY> [-c <CATEGORY>] ...]
[-e|--es <EXTRA_KEY> <EXTRA_STRING_VALUE> ...]
[--esn <EXTRA_KEY> ...]
[--ez <EXTRA_KEY> <EXTRA_BOOLEAN_VALUE> ...]
[--ei <EXTRA_KEY> <EXTRA_INT_VALUE> ...]
[--el <EXTRA_KEY> <EXTRA_LONG_VALUE> ...]
[--eu <EXTRA_KEY> <EXTRA_URI_VALUE> ...]
[--eia <EXTRA_KEY> <EXTRA_INT_VALUE>[,<EXTRA_INT_VALUE...]]
[--ela <EXTRA_KEY> <EXTRA_LONG_VALUE>[,<EXTRA_LONG_VALUE...]]
[-n <COMPONENT>] [-f <FLAGS>]
[--grant-read-uri-permission] [--grant-write-uri-permission]
[--debug-log-resolution] [--exclude-stopped-packages]
[--include-stopped-packages]
[--activity-brought-to-front] [--activity-clear-top]
[--activity-clear-when-task-reset] [--activity-exclude-from-recents]
[--activity-launched-from-history] [--activity-multiple-task]
[--activity-no-animation] [--activity-no-history]
[--activity-no-user-action] [--activity-previous-is-top]
[--activity-reorder-to-front] [--activity-reset-task-if-needed]
[--activity-single-top] [--activity-clear-task]
[--activity-task-on-home]
[--receiver-registered-only] [--receiver-replace-pending]
[--selector]
[<URI> | <PACKAGE> | <COMPONENT>]
Error: Unknown command: -h尽管-h没法识别，可还是打印出了參数的。
经常使用命令介绍：
1、am
am命令是很实用的一个命令，使用此命令能够启动 activity, services；发送 broadcast等等。
使用实例：如启动一个 Activity：
格式：adb shell am start -n 包名/包名＋类名（-n 类名,-a action,-d date,-m MIME-TYPE,-c category,-e 扩展数据,等）。
实例1：C:UsersAdministrator>adb shell am start -n com.android.camera/.CameraStarting: Intent { cmp=com.android.camera/.Camera }
实例2：（带extra 的 intent）C:UsersAdministrator>adb shell am start -n com.android.camera/.Camera -e abc helloStarting: Intent { cmp=com.android.camera/.Camera (has extras) }当中 extra 的 key 为 abc ,value 为字串 "hello"
还能够发送命令模拟手机低电环境：
实例：adb shell am broadcast -a android.intent.action.BATTERY_CHANGED --ei "level" 3 --ei "scale" 100
2、getprop/watchprops
getprop列出系统的属性,前面十名字,后面是值
# getprop
getprop
[ro.secure]: [0]
[ro.allow.mock.location]: [1]
[ro.debuggable]: [1]
[persist.service.adb.enable]: [1]
[ro.kernel.qemu]: [1]
[ro.kernel.console]: [ttyS0]
[ro.kernel.android.checkjni]: [1]
[ro.kernel.android.qemud]: [ttyS1]
[ro.kernel.android.ndns]: [1]
[ro.factorytest]: [0]
[ro.serialno]: []
3、watchprosp动态监视这些属性的变化,比方我改动系统的语言为中文,就会打印出:
# watchprops
watchprops
1269420653 persist.sys.language = 'zh'
1269420653 persist.sys.language = 'CN'
4、 wipe <system|data|all>
wipe表示清除模拟器或者真机上的数据,比方你的模拟器用了非常久,装了非常多软件就能够用这个来清除
system表示清除 /system下的数据
data表述清除 /data 下的数据
5、dumpsys命令
主要用来获取一些系统service的信息，也能够对这些服务做一些简单的控制。
在使用此命令之前要先查看一下有哪些组件是能够使用这个命令的
C:UsersAdministrator>adb shell shell@android:/ $ dumpsys | grep DUMP dumpsys | grep DUMP DUMP OF SERVICE Binder.Pged: DUMP OF SERVICE ProtocolParaManagerService: DUMP OF SERVICE SurfaceFlinger: DUMP OF SERVICE accessibility: DUMP OF SERVICE account: DUMP OF SERVICE activity: DUMP OF SERVICE alarm: DUMP OF SERVICE appwidget: DUMP OF SERVICE audio: DUMP OF SERVICE audio.om: DUMP OF SERVICE backup: DUMP OF SERVICE battery: DUMP OF SERVICE batteryinfo: DUMP OF SERVICE bluetooth_manager: DUMP OF SERVICE clipboard:
还有非常多，比方activity的信息
C:UsersAdministrator>adb shell dumpsys activity > e:activity.txt C:UsersAdministrator>因为activity的信息太多了，所以将信息输出到文件。
查看程序内存使用情况，dumpsys meminfo YoupackageName
C:UsersAdministrator>adb shell dumpsys meminfo cn.com.zte.uc
Applications Memory Usage (kB):
Uptime: 2341477 Realtime: 2341464
** MEMINFO in pid 5851 [cn.com.zte.uc] **
Shared Private Heap Heap Heap
Pss Dirty Dirty Size Alloc Free
------ ------ ------ ------ ------ ------
Native 72 12 72 9012 5361 3650
Dalvik 28915 5784 28768 28624 26812 1812
Cursor 0 0 0
Ashmem 0 0 0
Other dev 4 60 0
.so mmap 3334 864 1196
.jar mmap 20 0 0
.apk mmap 238 0 0
.ttf mmap 482 0 0
.dex mmap 4576 0 28
Other mmap 1151 4 40
Unknown 5480 36 5480
TOTAL 44272 6760 35584 37636 32173 5462
Objects
Views: 552 ViewRootImpl: 1
AppContexts: 14 Activities: 11
Assets: 4 AssetManagers: 4
Local Binders: 33 Proxy Binders: 29
Death Recipients: 0
OpenSSL Sockets: 0
SQL
MEMORY_USED: 352
PAGECACHE_OVERFLOW: 182 MALLOC_SIZE: 62
DATABASES
pgsz dbsz Lookaside(b) cache Dbname
4 268 477 539/60/25 /data/data/cn.com.zte.uc/databases/E300
Asset Allocations
zip:/data/app/cn.com.zte.uc-1.apk:/resources.arsc: 192K
C:UsersAdministrator>假设dumpsys不能用，检查你的manifest.xml是不是加了这个permission：
android.permission.DUMP
6、pm命令 （2014年9月26日更新）
这个命令相同很强大。来看下它都有哪些用处。
usage: pm list packages [-f] [-d] [-e] [-s] [-3] [-i] [-u] [--user USER_ID] [FIL
TER]
pm list permission-groups
pm list permissions [-g] [-f] [-d] [-u] [GROUP]
pm list instrumentation [-f] [TARGET-PACKAGE]
pm list features
pm list libraries
pm list users
pm path PACKAGE
pm install [-l] [-r] [-t] [-i INSTALLER_PACKAGE_NAME] [-s] [-f]
[--algo <algorithm name> --key <key-in-hex> --iv <IV-in-hex>]
[--originating-uri <URI>] [--referrer <URI>] PATH
pm uninstall [-k] PACKAGE
pm clear [--user USER_ID] PACKAGE
pm enable [--user USER_ID] PACKAGE_OR_COMPONENT
pm disable [--user USER_ID] PACKAGE_OR_COMPONENT
pm disable-user [--user USER_ID] PACKAGE_OR_COMPONENT
pm grant PACKAGE PERMISSION
pm revoke PACKAGE PERMISSION
pm set-install-location [0/auto] [1/internal] [2/external]
pm get-install-location
pm set-permission-enforced PERMISSION [true|false]
pm trim-caches DESIRED_FREE_SPACE
pm create-user USER_NAME
pm remove-user USER_ID
pm get-max-users
pm list packages: prints all packages, optionally only
those whose package name contains the text in FILTER. Options:
-f: see their associated file.
-d: filter to only show disbled packages.
-e: filter to only show enabled packages.
-s: filter to only show system packages.
-3: filter to only show third party packages.
-i: see the installer for the packages.
-u: also include uninstalled packages.
pm list permission-groups: prints all known permission groups.
pm list permissions: prints all known permissions, optionally only
those in GROUP. Options:
-g: organize by group.
-f: print all information.
-s: short summary.
-d: only list dangerous permissions.
-u: list only the permissions users will see.
pm list instrumentation: use to list all test packages; optionally
supply <TARGET-PACKAGE> to list the test packages for a particular
application. Options:
-f: list the .apk file for the test package.
pm list features: prints all features of the system.
pm list users: prints all users on the system.
pm path: print the path to the .apk of the given PACKAGE.
pm install: installs a package to the system. Options:
-l: install the package with FORWARD_LOCK.
-r: reinstall an exisiting app, keeping its data.
-t: allow test .apks to be installed.
-i: specify the installer package name.
-s: install package on sdcard.
-f: install package on internal flash.
-d: allow version code downgrade.
pm uninstall: removes a package from the system. Options:
-k: keep the data and cache directories around after package removal.
pm clear: deletes all data associated with a package.
pm enable, disable, disable-user: these commands change the enabled state
of a given package or component (written as "package/class").
pm grant, revoke: these commands either grant or revoke permissions
to applications. Only optional permissions the application has
declared can be granted or revoked.
pm get-install-location: returns the current install location.
0 [auto]: Let system decide the best location
1 [internal]: Install on internal device storage
2 [external]: Install on external media
pm set-install-location: changes the default install location.
NOTE: this is only intended for debugging; using this can cause
applications to break and other undersireable behavior.
0 [auto]: Let system decide the best location
1 [internal]: Install on internal device storage
2 [external]: Install on external media
pm trim-caches: trim cache files to reach the given free space.
pm create-user: create a new user with the given USER_NAME,
printing the new user identifier of the user.
pm remove-user: remove the user with the given USER_IDENTIFIER,
deleting all data associated with that user比如：打印全部已知的权限
shell@android:/ $ pm list permissions pm list permissions All Permissions: permission:com.sina.weibo.permission.PUSH_MSG_BROADCAST_PERMISSION permission:com.google.android.gms.permission.GAMES_DEBUG_SETTINGS permission:com.tencent.photos.permission.DATA .......... shell@android:/ $