Related
I've searched a lot, but did not find a solution.
When I connect my HTC Kaiser with Android Ion 1.5 on the top to my Linux box (all UDEV settings are as recommended), the adb utility (launched as root) does not recognize it correctly. It shows a set of questionmarks instead of the device name:
Code:
* daemon not running. starting it now *
* daemon started successfully *
List of devices attached
???????????? device
adb basic commands (pull/push/install/shell) work, though, but DDMS does not work and I can't debug my application when the device is attached.
Does somebody have a solution?
You need to run the adb server as root. Use su or sudo to run these:
Code:
./adb kill-server
./adb start-server
You can then use adb and ddms as a normal user. If you use fastboot, you may find you need to run that as root as well.
it is root
Super Jamie said:
You need to run the adb server as root. Use su or sudo to run these:
Code:
./adb kill-server
./adb start-server
You can then use adb and ddms as a normal user. If you use fastboot, you may find you need to run that as root as well.
Click to expand...
Click to collapse
Like I mentioned in my question - I do run adb as root.
When it's launched not as root, I can not even do "adb shell" and
"adb devices" shows:
"????????????? Permission denied". So, it is root, I assure.
BTW, on my work Windows 2k3 machine I can use ddms, but
"adb devices" still shows some garbage letters instead of the device name.
Sorry for my English, if my explanation is not clear.
ADB COMMANDS
This is just a simple guide on how to open up and run adb commands from your windows based operating system.
Open up run by simultaneously pressing the windows flag key and r.
In the window that pops up type cmd. Now command prompt is open
type the commands each followed by the enter key: cd\
cd androidsdk/tools
Now your in your in your androidsdk/tools folder. You can do several things in here but i'll start with some basics each
of the following commands is to be followed by the enter key
adb devices (this lets you know what devices are attached to the computer in usbdebugging)
How to get your logcat (this will put your logcat in txt format in your sdk tools folder)
adb logcat > logcat.txt
copy an app from your phone to your computer
adb pull /system/app/whatever.apk C:\ateam (replace whatever.apk with the app your pulling also replace ateam with the
folder your placing the app in
Install an app from your computer on your phone
adb install whatever.apk (put an apk in your sdk tools and replace"whatever" with the name of the apk and it will install it)
also you can add either -r or -s to reinstall or install on the sdcard for instance: adb install -r Rosie.apk
this command will reinstall the new rosie from your tools file and still keep the same user data as before.
-r for reinstall
-s for sdcard (gotta test this)
Push an app from your computer to your phones filesystem (in some cases also installs)
adb remount
adb push whatever.apk /system/app (put an apk in your sdk tools and replace "whatever" with the name of the apk and this
will push it to your system app folder. You can change the destination as well for example: You want to push Launcher2.apk
to your data/app folder: adb remount
adb push Launcher2.apk /data/app )
Remove an app from your phone
adb remount
adb shell
cd /system/app (this will change your disk to system/app you may also change to another folder as well)
ls -a ( a list will show of all the apps inside your system app folder)
rm whatever.* (replace the whatever.* with the name of a apk you want to remove )
Flash a recovery image to your phone
First pace the recovery image in your sdcard root and rename it to recovery (so the full name will now be recovery.img)
adb shell
flash_image recovery /sdcard/recovery.img (wait till this# sign shows up again before you type the next command)
reboot recovery
get your current battery level
adb shell cat /sys/class/power_supply/battery/capacity
get your current rom build
adb shell getprop ro.build.description
Reboot into fastboot ruu
adb shell reboot oem-78
How to run the ruu via adb
First thing first start the ruu give it permissions and so fourth
When it gets to the part where it says "Follow the instructons below..."
Move the ruu window out of the way and start your task manager
Go to processes right click on ARUWizard.exe and choose open file location
A new window will open scroll till you see ROM.zip
Copy and paste Rom.zip to your desktop
Once you have copied it to your desktop shutdown the ruu and task manager
Click start menu then click computer
A window will open up click the c drive
now click create new folder and name it test
put the rom.zip in the test folder
plug your phone in and open command prompt and type
Code:
adb devices
adb shell reboot oem-78
fastboot devices
fastboot getvar boot-mode
fastboot erase cache
fastboot flashzip C:\test\rom.zip
fastboot devices
fastboot getvar boot-mode
fastboot reboot
Very useful man thanks for the guide. I also think newbies would use this guide as its in the right catagory and not in some G1 section or Mt3g section.
Edit** isnt this already in the tuorials section?
sandboxlove said:
i think its a great idea, we need a more compilied list to refer to
add more!!!!
Click to expand...
Click to collapse
I'm going to try to add one everyday. tomorrows lesson how to run the ruu from adb
Powers16 said:
Very useful man thanks for the guide. I also think newbies would use this guide as its in the right catagory and not in some G1 section or Mt3g section.
Edit** isnt this already in the tuorials section?
Click to expand...
Click to collapse
Where? Pagelink
http://forum.xda-developers.com/showthread.php?p=5799939#post5799939
but its a less in depth reference so i hope this gets added into the tutorial section as here are no in depth tuts about adb in there..
also to remove apk
adb shell rm /system/ (then put in either app or media or what ever folder name /whatever.apk
Papa Smurf151 said:
also to remove apk
adb shell rm -r /system/ (then put in either app or media or what ever folder name /whatever.apk
Click to expand...
Click to collapse
rm -r is a recursive deletion and can have a lot of unwanted and harmful side-effects if used incorrectly. To just remove apks, a simple rm works just fine. If they typed the wrong directory, file name, whatever, a recursive deletion would clear the entire folder... Not really something you'd want.
This is great, I will be coming back for more.
Thanks a lot
DevinXtreme said:
rm -r is a recursive deletion and can have a lot of unwanted and harmful side-effects if used incorrectly. To just remove apks, a simple rm works just fine. If they typed the wrong directory, file name, whatever, a recursive deletion would clear the entire folder... Not really something you'd want.
Click to expand...
Click to collapse
thanks...i knew that but wasnt paying attention. I just copied and pasted from my adb notepad file. i edited my post and removed the -r
DevinXtreme said:
rm -r is a recursive deletion and can have a lot of unwanted and harmful side-effects if used incorrectly. To just remove apks, a simple rm works just fine. If they typed the wrong directory, file name, whatever, a recursive deletion would clear the entire folder... Not really something you'd want.
Click to expand...
Click to collapse
LOL, yeah, I've done that
Might want to also include a note that says when using linux or mac shell you replace the "adb" with "./adb" (I believe that is correct or at least what I do now when reading the windows cmd guides)
tejasrichard said:
LOL, yeah, I've done that
Click to expand...
Click to collapse
I wiped out 16 years of source code with it once....I got fired.
Kcarpenter said:
I wiped out 16 years of source code with it once....I got fired.
Click to expand...
Click to collapse
Oh damn that's crucial man. Hope they had backups
Screwin around
So I was screwin around with adb tryin to learn this stuff and I stumbled across this by just typing adb after cd'ing in. Hopefully its useful. Mind you I am a total noob to android/linux and this was a total accident. I am sure you all know about it though. Useful info though
Microsoft Windows [Version 6.1.7600]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.
C:\>cd\
C:\>cd android-sdk-windows
C:\android-sdk-windows>adb
Android Debug Bridge version 1.0.26
-d - directs command to the only connected USB device.
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 running.
-s <serial number> - directs command to the USB device or emulator with the given serial number. Overrides ANDROID_SERIAL 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.
devices - list all connected devices
connect <host>:<port> - connect to a device via TCP/IP
disconnect <host>:<port> - disconnect from a TCP/IP device
device commands:
adb push <local> <remote> - copy file/dir to device
adb pull <remote> [<local>] - copy file/dir from device
adb sync [ <directory> ] - copy host->device only if changed
(see 'adb help all')
adb shell - run remote shell interactively
adb shell <command> - run remote shell command
adb emu <command> - run emulator console command
adb logcat [ <filter-spec> ] - View device log
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 jdwp - list PIDs of processes hosting a JDWP transport
adb install [-l] [-r] [-s] <file> - push this package file to the device and install it
('-l' means forward-lock the app)
('-r' means reinstall the app, keeping its data)
('-s' means install on SD card instead of internal storage)
adb uninstall [-k] <package> - remove this app package from the device
('-k' means keep the data and cache directories)
adb bugreport - return all information from the device
that should be included in a bug report.
adb help - show this help message
adb version - show version num
DATAOPTS:
(no option) - don't touch the data partition
-w - wipe the data partition
-d - flash the data partition
scripting:
adb wait-for-device - block until device is online
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 status-window - continuously print device status for a specified device
adb remount - remounts the /system partition on the device read-write
adb reboot [bootloader|recovery] - reboots the device, optionally into the bootloade or recovery program
adb reboot-bootloader - reboots the device into the bootloader
adb root - restarts the adbd daemon with root permissions
adb usb - restarts the adbd daemon listening on USB
adb tcpip <port> - restarts the adbd daemon listening on TCP on the 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, both /system and /data partitions will be u
pdated.
- If it is "system" or "data", only the corresponding partition
is updated.
C:\android-sdk-windows>
Hi, I'm abcdfv, and I approve this thread.
abcdfv said:
Hi, I'm abcdfv, and I approve this thread.
Click to expand...
Click to collapse
LOL Thanks
I've always been an advocator of EVERYONE learning the ADB basics at least.
updated with run the run the ruu via adb commands
I'm trying to flash my recovery image. I need help. What is the first comand I type at C:\Windows\System32> normally I type cd:\android-sdk-windows\tools
then i adb remount, then adb shell. When I do that now I get "remount failed: Invalid argument" I'm not TOTALLY clueless, although it may turn out that I am after this. any help would be great. I am booted in recovery, but since my recovery image is gone, its just an exclamation in a triangle. if i adb devices, i can see my phone and it says i'm in recovery. Thanks.
I need some serious help with this.....do you need to download anything on your computer?? can you explain all the stuff you need to do leading up to what you type into command prompt...anyone..i need help..i flashed darchstar froyo build and the recovery is all messed up..i cant flash anything..so i need to push a new recovery img.but i don't know anything about adb shell or anything .....please........ive never had to push anything..everyone always just puts flashable zips out for you...HELP
Hey Boys and Girls,
where i can find an manual to root the tattoo with a mac?
sorry, i have search for this, but i cant find information for this
I don't thing that there is a difference.
As soon as you have SDK installed and adb works, the commands are the same.
hi,
i'm also doing all the rooting process from mac, just put the directory contain 'adb' shell into your home/user places and executing it with 'terminal'..
Same here, using a Mac ever since and also using it for Android development. Due to the underlying Unix core of OS X you just have to follow the steps as described for Linux. If it's just adb commands it's the same on every platform anyway.
You might want to add a
Code:
export PATH=${PATH}:/Users/yourusername/android.sdk/tools
to your .bash_profile file in your home folder so you don't have to cd to the SDK tools folder everytime. Happy rooting!
Mod. edit: not dev related, moved to general
Okay thanks for yours answers but i'm a newbie.
the background story is, I want to edit the boot.mp3. Because the startsound is really annoying
So i have download SDK, open the terminal and switch to usb-debbugging mode on my tattoo.
And now? sorry, I'm still missing a few knowledge
thanks for your help
well just use the various adb commands in Terminal Just type in "adb", press enter and you'll get a list of all possible commands. Assuming you've added the path to your sdk tools folder to your bash profile. Otherwise just drag & drop the adb binary from the tools folder onto your Terminal window, et voila.
The most used commands are probably push and pull where you can, well, push stuff to your phone or pull it to your computer.
So if you want to modify the boot.mp3 you would pull the original from the phone to your computer, modify it and push it back, overwriting the original file. In Terminal speak: ;-)
adb pull /system/media/bootscreen/boot.mp3
adb push /path/to/boot.mp3 /system/media/bootscreen/boot.mp3
Please note depending on the ROM you're using the paths may be different. To browse the device via Terminal type in "adb shell" and make a simple "ls" to list the directories, "cd" to change directories etc.
Or if you just want to use another mp3:
adb push /path/to/whatever.mp3 /system/media/bootscreen/boot.mp3
Again, on the Mac you can just drag & drop files onto the Terminal to get their full Unix paths like to your custom mp3
Thanks a lot. i love it its really simple
and now i have load and edit the the boot.mp3. But i can't push it to my tattoo, because i can only read but not write
I have tried to root my phone with "adb root" but it is the message "adbd cannot run as root in production builds"
Terminal: "adb remount", then push again
damn the next bad message "remount failed: Operation not permitted"
You need to root your phone first.
http://forum.xda-developers.com/showthread.php?t=637927
Okay i have executed the instructions. But I've stop at this part:
You should get something like this:
Code:
# id
uid=0(root) gid=1000(shell) groups=1003(graphics),1004(input),1007(log),1011(adb),1015(sdcard_rw),3001(net_bt_admin),3002(net_bt),3003(inet)
uid=0(root) is important.
Click to expand...
Click to collapse
Yes i've root but i'cant download the "su binary" because its doesnt exist.
But its absolute essential to need the "su binary" to only copy the boot.mp3 to my phone? Or there is an other way? What are the commands to push the boot.mp3 back to may tattoo then i'm in the root mode like >> "#".
okay hope you understand me
You need "su" to do root stuff... no other way.
Download the package from 1 click root thread and find "su" there...
http://forum.xda-developers.com/showthread.php?t=644279
now, i have install the su binary. Then i does this command
user:~ user$ /Users/user/android-sdk-mac_86/tools/adb shell
$ /data/local/bin/su
#
Click to expand...
Click to collapse
And now? Is there a comand to push the boot.mp3 back to the phone in this mode >> "#" ?
I have try to open an new terminal window and type
adb push /path/to/boot.mp3 /system/media/bootscreen/boot.mp3
Click to expand...
Click to collapse
but the answer is
failed to copy '/Users/android-sdk-mac_86/boot.mp3' to '/system/media/bootscreen/boot.mp3': Permission denied
Click to expand...
Click to collapse
and adb remount doesnt work to
You also need tattoo-hack.ko file and do insmod tattoo-hack.ko to make /system writable.
Or even better... flash custom amon_ra recovery image and then a custom rom with all this already included.
Mine for example http://forum.xda-developers.com/showthread.php?t=702401
It doesnt have boot sound enabled
Okay thank you very much.
now it was successful
I still see a lot of people having trouble with ADB in ubuntu, so here is quick guide for anyone still having trouble.
The guide is located HERE and also can be viewed on post #12
*Updated 9-10-10* Thanks to xipher_zero for his very quick and easy guide (Much better than my original).
Hope this helps some people having issues.
If I install unbuntu it overrides my win7 correct?
Sent from my SGH-T959 using XDA App
Oh my!! I've been searched for this guide for a long time Thanks you so much MR.the3dman
Wykedx
Oh boy... where to get started. You could install Ubuntu without overwriting your W7 installation. Then you would "dual boot" your computer. As it boots up, you choose which OS to load. Or of course you could install Ubuntu on a computer by itself.
You don't need to install Ubuntu just to use ADB. ADB runs on both Win and Linux. What is it that you are trying to do? If you just want to learn linux, then make yourself a live CD and you won't have to worry about overwriting any operating systems.
But this is not a linux forum. If this is something that you are interested in, then google is your friend.
if you are interested in trying ubuntu, you might check this out: http://wubi-installer.org/. or just run a LiveCD, as already suggested.
Do you happen to have a HTC??
My output of lsusb:
Code:
Bus 002 Device 002: ID 04e8:681d Samsung Electronics Co., Ltd
Shouldn't /etc/udev/rules.d/51-android.rules contain 04e8 instead of 0bb4?
And no, even that didn't help me. I'm on Ubuntu Lucid Lynx 64 bit.
fantasyzer said:
Do you happen to have a HTC??
My output of lsusb:
Code:
Bus 002 Device 002: ID 04e8:681d Samsung Electronics Co., Ltd
Shouldn't /etc/udev/rules.d/51-android.rules contain 04e8 instead of 0bb4?
And no, even that didn't help me. I'm on Ubuntu Lucid Lynx 64 bit.
Click to expand...
Click to collapse
Thanks for noticing that! I have updated the rules with the correct ones. I have an htc also and uploaded the wrong rules. I am also on Ubuntu Lucid 64 bit and this is what worked for me. I also have done this on my netbook which runs 9.10 so I am really not sure what the issue is then. Did you use ADB from the sdk or from the app inventor adb in the guide?
If I read correctly when browsing for this topic, your instruction is to drop in these rule files, and then run adb using sudo
When using sudo to run adb, it'll always work, regardless of what's in your rules file
If you have your rules file correct, you don't need to do sudo adb
Just adb will work fine
animefans said:
If I read correctly when browsing for this topic, your instruction is to drop in these rule files, and then run adb using sudo
When using sudo to run adb, it'll always work, regardless of what's in your rules file
If you have your rules file correct, you don't need to do sudo adb
Just adb will work fine
Click to expand...
Click to collapse
I did try this, I removed my rules and reloaded my udev folder then tried adb with sudo and it was a no go (I get nothing listed under the list of devices). Also the only way I could get adb to recognize anything without sudo was by adding a line in the rules making my user as the owner, but even still without sudo under devices I get ???????????? no permissions. With sudo and the rules everything works fine which is why I wrote the guide that way.
If you don't want to run ADB as root you can follow the steps in this post
http://forum.xda-developers.com/showpost.php?p=7282335&postcount=4 - FOR SAMSUNG ONLY DEVICES!!!
after you installed SDK.
I also have adb in my path so I do not have to be in the tools directory, and can execute it from anywhere
In my .bashrc file (if you are using bash shell)
Code:
export PATH=$PATH:/path/to/android-sdk/tools
Thanks the3dman for the guide. Unfortunately I am still having problems as when I run the sudo ./adb devices nothing is listed. I followed the directions step by step and also confirmed my Vibrant is in debug mode (also confirms on the phone it is in debug mode when connected via usb. I even rebooted everything again, double checked everything and still no devices listed. I am running Ubuntu 10.04 Any ideas? Thanks so much!
-mG
Four Step ADB installation in Ubuntu
Here is a simple guide without using custom debs:
1. Download the SDK:
wget dl.google.com/android/android-sdk_r07-linux_x86.tgz
2. Extract the archive to the current directory and move into the extracted directory.
tar xvfz android-sdk_r07-linux_x86.tgz && cd android-sdk-linux_x86
3. Move the "tools" folder to your local system folder:
sudo mv tools /usr/local/share/android-tools
4. Create a symbolic link to the adb executable:
sudo ln -s /usr/local/share/android-tools/adb /usr/local/bin/
Done!
from a terminal type:
sudo adb devices (This will start the server and search for connected devices)
Are you running Ubuntu 64bit? If so you need to make sure that you have the 32bit compatibility libraries installed. From the command line run the following:
sudo apt-get install ia32-libs
This will allow you to run 32bit apps in 32bit mode. Not sure if this is whats causing your issue, but it might be worth a shot.
xipher_zero: Thank you, I followed your steps and it is working now.
Oh, I am running 32bit Ubuntu so that was not the problem.
lqaddict said:
If you don't want to run ADB as root you can follow the steps in this post
http://forum.xda-developers.com/showpost.php?p=7282335&postcount=4 - FOR SAMSUNG ONLY DEVICES!!!
after you installed SDK.
I also have adb in my path so I do not have to be in the tools directory, and can execute it from anywhere
In my .bashrc file (if you are using bash shell)
Code:
export PATH=$PATH:/path/to/android-sdk/tools
Click to expand...
Click to collapse
This is not working for some people that is what is being figured out. I am in the process of updating my guide and the new and better one should be up shortly.
xipher_zero said:
Here is a simple guide without using custom debs:
1. Download the SDK:
wget dl.google.com/android/android-sdk_r07-linux_x86.tgz
2. Extract the archive to the current directory and move into the extracted directory.
tar xvfz android-sdk_r07-linux_x86.tgz && cd android-sdk-linux_x86
3. Move the "tools" folder to your local system folder:
sudo mv tools /usr/local/share/android-tools
4. Create a symbolic link to the adb executable:
sudo ln -s /usr/local/share/android-tools/adb /usr/local/bin/
Done!
from a terminal type:
sudo adb devices (This will start the server and search for connected devices)
Click to expand...
Click to collapse
This version worked well also! Thanks its much shorter and easier than my method.
MrGibbage said:
Wykedx
Oh boy... where to get started. You could install Ubuntu without overwriting your W7 installation. Then you would "dual boot" your computer. As it boots up, you choose which OS to load. Or of course you could install Ubuntu on a computer by itself.
You don't need to install Ubuntu just to use ADB. ADB runs on both Win and Linux. What is it that you are trying to do? If you just want to learn linux, then make yourself a live CD and you won't have to worry about overwriting any operating systems.
But this is not a linux forum. If this is something that you are interested in, then google is your friend.
Click to expand...
Click to collapse
thanks for the response, and sorrry i didn't see this before lol,
what i am trying to do is be able to use adb, at the moment I can't seem to use it because my default.prop is not correct so i heard i have to use linux to be able to edit my default prop...when i try to adb push or remount i get permission denied and yet I have superuser permission and everything.
do you have to root your phone while being an administrator on the computer?
Wykedx said:
thanks for the response, and sorrry i didn't see this before lol,
what i am trying to do is be able to use adb, at the moment I can't seem to use it because my default.prop is not correct so i heard i have to use linux to be able to edit my default prop...when i try to adb push or remount i get permission denied and yet I have superuser permission and everything.
do you have to root your phone while being an administrator on the computer?
Click to expand...
Click to collapse
Try putting your phone in clockwork recovery then issuing the adb commands, and yes your phone has to be rooted.
Thanks for the excellent how to, however...
I've still got a problem:
after "sudo adb devices" (step 5) I always get this message:
List of devices attached
??????????? no permissions;
while "lsusb" gives me that:
Bus 002 Device 007: ID 04e8:681c Samsung Electronics Co., Ltd Galaxy Portal/Spica Android Phone
so how can I solve this?
(Kubuntu 10.10 is my current os)
RiverTam said:
I've still got a problem:
after "sudo adb devices" (step 5) I always get this message:
List of devices attached
??????????? no permissions;
while "lsusb" gives me that:
Bus 002 Device 007: ID 04e8:681c Samsung Electronics Co., Ltd Galaxy Portal/Spica Android Phone
so how can I solve this?
(Kubuntu 10.10 is my current os)
Click to expand...
Click to collapse
you'll need to edit a usb rule to "look" for the samsung phone. i forgot what file to edit and what to put in there, once i find the file, i'll post it from my laptop.
EDIT: lol, i found it.
http://forum.xda-developers.com/showpost.php?p=7343021&postcount=1
Hi i know that this question is stupid for u guys here.im woundering where do i get tha adb program(u know like a terminal emulator app).please help i need it for instaling an modified framework.sory for bad english and stupid question
My first android phone so im noob at this tings
Do i need to instal ssh droid from market?
Sent from my GT-I5800
anyone here to giv us a tutorial on adb??
thnx in adv
adb is a part of the Android SDK. Installation is described at "Installing the SDK (devloper.android.com)".
After downloading and installing the SDK (let it download the packages too), open command prompt
In vista\7: Press start -> type cmd to the search box
In XP: Press start and click on 'run' and then type cmd there
Then you must cd.. to the directory where adb is installed (which is usually C:\Program Files\android\android-sdk-windows\platform-tools\
Once your command prompt is there, you can use the adb commands. If it says Adb is not a recognizable command then you're most likely in the wrong directory.
cd.. goes backwards a directory
cd goes forwards
For example, the command prompt shows C:\users\administrator, if you type cd.. it goes to C:\users, you type it again it goes to C:\ etc..
Once there, you type cd program files -> cd android -> cd android-sdk-windows -> cd platform-tools and there you are
More info on how to use command prompt: http://dosprompt.info/
edit: sorry for being stupid. Of course you can do straight cd c:\program files\android\android-sdk-windows\platform-tools