大家都熟悉android 的安装命令，pm
pm usage: pm list packages [-f] [-d] [-e] [-s] [-3] [-i] [-u] [--user USER_ID] [FILTER] 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 dump PACKAGE pm install [-lrtsfd] [-i PACKAGE] [PATH] pm install-create [-lrtsfdp] [-i PACKAGE] [-S BYTES] pm install-write [-S BYTES] SESSION_ID SPLIT_NAME [PATH] pm install-commit SESSION_ID pm install-abandon SESSION_ID pm uninstall [-k] [--user USER_ID] PACKAGE pm set-installer PACKAGE INSTALLER 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 disable-until-used [--user USER_ID] PACKAGE_OR_COMPONENT pm hide [--user USER_ID] PACKAGE_OR_COMPONENT pm unhide [--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 [--profileOf USER_ID] [--managed] 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 dump: print system state associated with the given PACKAGE.
pm install: install a single legacy package pm install-create: create an install session -l: forward lock application -r: replace existing application -t: allow test packages -i: specify the installer package name -s: install application on sdcard -f: install application on internal flash -d: allow version code downgrade -p: partial application install -S: size in bytes of entire session
pm install-write: write a package into existing session; path may be '-' to read from stdin -S: size in bytes of package, required for stdin
pm install-commit: perform install of fully staged session pm install-abandon: abandon session
pm set-installer: set installer package name
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, disable-until-used: 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
pm 在android 代码中的外置：
frameworks\base\cmds\pm
Android.mk 的解析：
3LOCAL_PATH:= $(call my-dir) 4include $(CLEAR_VARS) 5 6LOCAL_SRC_FILES := $(call all-subdir-java-files) 7LOCAL_MODULE := pm 8include $(BUILD_JAVA_LIBRARY) //pm.jar编译出 9 10 11include $(CLEAR_VARS) 12ALL_PREBUILT += $(TARGET_OUT)/bin/pm 13$(TARGET_OUT)/bin/pm : $(LOCAL_PATH)/pm | $(ACP) //拷贝pm 命令为/system/bin/pm 14 $(transform-prebuilt-to-target) 15pm 命令代码为
1# Script to start "pm" on the device, which has a very rudimentary 2# shell. 3# 4base=/system 5export CLASSPATH=$base/framework/pm.jar 6exec app_process $base/bin com.android.commands.pm.Pm "$@" 7上面代码中调用pm.jar 中的Pm 静态方法，传入$@ 参数，执行apk 的安装流程。
