按照此处“Testing Local Web Sites with the Android Emulator”中的说明操作，我一直成功到Make your changes to the hosts file and then save it back to the AVD。换句话说，我无法将修改后的主机文件推回到AVD。本文中的说明适用于Mac，因此我已将命令行转换为Windows。
文章中引用的Mac命令是......
$ ~/Library/Android/sdk/platform-tools/adb -s emulator-5554 push ~/Desktop/hosts /system/etc/hosts
我已将其翻译为Windows ...
$ adb –s emulator-5554 push C:\Users\(username)\Downloads\hosts /system/etc/hosts
注意：
当我运行adb命令将主机文件推回到AVD时，文件没有被推送，我在终端中看到了这个输出......
C:\Users\(username)\AppData\Local\Android\sdk\platform-tools>adb -s emu
lator-5554 push C:\Users\(username)\Downloads\hosts /system/etc/hosts
Android Debug Bridge version 1.0.36
Revision e02fe72a18c3-android
-a - directs adb to listen on all interfaces for a c
onnection
-d - directs command to the only connected USB devic
e
returns an error if more than one USB device is
present.
-e - directs command to the only running emulator.
returns an error if more than one emulator is r
unning.
-s <specific device> - directs command to the device or emulator with
the given
serial number or qualifier. Overrides ANDROID_S
ERIAL
environment variable.
-p <product name or path> - simple product name like 'sooner', or
a relative/absolute path to a product
out directory like 'out/target/product/sooner'.
If -p is not specified, the ANDROID_PRODUCT_OUT
environment variable is used, which must
be an absolute path.
-H - Name of adb server host (default: localhost)
-P - Port of adb server (default: 5037)
devices [-l] - list all connected devices
('-l' will also list device qualifiers)
connect <host>[:<port>] - connect to a device via TCP/IP
Port 5555 is used by default if no port number
is specified.
disconnect [<host>[:<port>]] - disconnect from a TCP/IP device.
Port 5555 is used by default if no port number
is specified.
Using this command with no additional arguments
will disconnect from all connected TCP/IP devic
es.
device commands:
adb push <local>... <remote>
- copy files/dirs to device
adb pull [-a] <remote>... <local>
- copy files/dirs from device
(-a preserves file timestamp and mode)
adb sync [ <directory> ] - copy host->device only if changed
(-l means list but don't copy)
adb shell [-e escape] [-n] [-Tt] [-x] [command]
- run remote shell command (interactive shell if
no command given)
(-e: choose escape character, or "none"; defaul
t '~')
(-n: don't read from stdin)
(-T: disable PTY allocation)
(-t: force PTY allocation)
(-x: disable remote exit codes and stdout/stder
r separation)
adb emu <command> - run emulator console command
adb logcat [ <filter-spec> ] - View device log
adb forward --list - list all forward socket connections.
the format is a list of lines with the followin
g format:
<serial> " " <local> " " <remote> "\n"
adb forward <local> <remote> - forward socket connections
forward specs are one of:
tcp:<port>
localabstract:<unix domain socket name>
localreserved:<unix domain socket name>
localfilesystem:<unix domain socket name>
dev:<character device name>
jdwp:<process pid> (remote only)
adb forward --no-rebind <local> <remote>
- same as 'adb forward <local> <remote>' but fail
s
if <local> is already forwarded
adb forward --remove <local> - remove a specific forward socket connection
adb forward --remove-all - remove all forward socket connections
adb reverse --list - list all reverse socket connections from device
adb reverse <remote> <local> - reverse socket connections
reverse specs are one of:
tcp:<port>
localabstract:<unix domain socket name>
localreserved:<unix domain socket name>
localfilesystem:<unix domain socket name>
adb reverse --no-rebind <remote> <local>
- same as 'adb reverse <remote> <local>' but fail
s
if <remote> is already reversed.
adb reverse --remove <remote>
- remove a specific reversed socket connection
adb reverse --remove-all - remove all reversed socket connections from dev
ice
adb jdwp - list PIDs of processes hosting a JDWP transport
adb install [-lrtsdg] <file>
- push this package file to the device and instal
l it
(-l: forward lock application)
(-r: replace existing application)
(-t: allow test packages)
(-s: install application on sdcard)
(-d: allow version code downgrade (debuggable p
ackages only))
(-g: grant all runtime permissions)
adb install-multiple [-lrtsdpg] <file...>
- push this package file to the device and instal
l it
(-l: forward lock application)
(-r: replace existing application)
(-t: allow test packages)
(-s: install application on sdcard)
(-d: allow version code downgrade (debuggable p
ackages only))
(-p: partial application install)
(-g: grant all runtime permissions)
adb uninstall [-k] <package> - remove this app package from the device
('-k' means keep the data and cache directories
)
adb bugreport [<zip_file>] - return all information from the device
that should be included in a bug report.
adb backup [-f <file>] [-apk|-noapk] [-obb|-noobb] [-shared|-noshared] [-all]
[-system|-nosystem] [<packages...>]
- write an archive of the device's data to <file>
.
If no -f option is supplied then the data is wr
itten
to "backup.ab" in the current directory.
(-apk|-noapk enable/disable backup of the .apks
themselves
in the archive; the default is noapk.)
(-obb|-noobb enable/disable backup of any insta
lled apk expansion
(aka .obb) files associated with each applic
ation; the default
is noobb.)
(-shared|-noshared enable/disable backup of the
device's
shared storage / SD card contents; the defau
lt is noshared.)
(-all means to back up all installed applicatio
ns)
(-system|-nosystem toggles whether -all automat
ically includes
system applications; the default is to inclu
de system apps)
(<packages...> is the list of applications to b
e backed up. If
the -all or -shared flags are passed, then t
he package
list is optional. Applications explicitly g
iven on the
command line will be included even if -nosys
tem would
ordinarily cause them to be omitted.)
adb restore <file> - restore device contents from the <file> backup
archive
adb disable-verity - disable dm-verity checking on USERDEBUG builds
adb enable-verity - re-enable dm-verity checking on USERDEBUG build
s
adb keygen <file> - generate adb public/private key. The private ke
y is stored in <file>,
and the public key is stored in <file>.pub. Any
existing files
are overwritten.
adb help - show this help message
adb version - show version num
scripting:
adb wait-for[-<transport>]-<state>
- wait for device to be in the given state:
device, recovery, sideload, or bootloader
Transport is: usb, local or any [default=any]
adb start-server - ensure that there is a server running
adb kill-server - kill the server if it is running
adb get-state - prints: offline | bootloader | device
adb get-serialno - prints: <serial-number>
adb get-devpath - prints: <device-path>
adb remount - remounts the /system, /vendor (if present) and
/oem (if present) partitions on the device read-write
adb reboot [bootloader|recovery]
- reboots the device, optionally into the bootloa
der or recovery program.
adb reboot sideload - reboots the device into the sideload mode in re
covery program (adb root required).
adb reboot sideload-auto-reboot
- reboots into the sideload mode, then reboots au
tomatically after the sideload regardless of the result.
adb sideload <file> - sideloads the given package
adb root - restarts the adbd daemon with root permissions
adb unroot - restarts the adbd daemon without root permissio
ns
adb usb - restarts the adbd daemon listening on USB
adb tcpip <port> - restarts the adbd daemon listening on TCP on th
e specified port
networking:
adb ppp <tty> [parameters] - Run PPP over USB.
Note: you should not automatically start a PPP connection.
<tty> refers to the tty for PPP stream. Eg. dev:/dev/omap_csmi_tty1
[parameters] - Eg. defaultroute debug dump local notty usepeerdns
adb sync notes: adb sync [ <directory> ]
<localdir> can be interpreted in several ways:
- If <directory> is not specified, /system, /vendor (if present), /oem (if pre
sent) and /data partitions will be updated.
- If it is "system", "vendor", "oem" or "data", only the corresponding partiti
on
is updated.
internal debugging:
adb reconnect Kick current connection from host side and make
it reconnect.
adb reconnect device Kick current connection from device side and ma
ke it reconnect.
environment variables:
ADB_TRACE - Print debug information. A comma separated list
of the following values
1 or all, adb, sockets, packets, rwx, usb, sync
, sysdeps, transport, jdwp
ANDROID_SERIAL - The serial number to connect to. -s takes prior
ity over this if given.
ANDROID_LOG_TAGS - When used with the logcat option, only these de
bug tags are printed.
这告诉我语法出了问题。据我所知，语法是正确的。有什么想法吗？