Related
Hi All,
The Ash shell provides a few advantages over the Android default sh shell such as command history and cursor handling at the prompt. There are other benefits, but these are the first that come in most handy (to me).
The following tutorial will get you ash as the login shell with as yet no ill effects:
Note: that in my case, I'm using my android2sd construct and thus this modification is being done to my active overlay profile setup, thus to undo it I can simply boot into "safe\\normal" mode and undo the changes without possibly locking me out of the console should it have failed (which it didn't) But you can edit the Android /system/bin/sh file in this manner directly.
Ash as Login Shell:
OK, make the /system fs read-write:
mount -o remount,rw /system
Click to expand...
Click to collapse
Note: that the fs type is not needed, and in my case is not yaffs but ext3, Android will figure it out proper.
Next,
cp -a /system/bin/sh /system/bin/sh0
Click to expand...
Click to collapse
(this is for backup purposes and allows us to undo the change if so desired, or delete it if no longer needed).
Note: I'm using JF1.51 roms, so busybox ash is available as /system/xbin/bb/ash, so that is what I am using here; use ash however you are able to access it.
echo "#!/system/xbin/bb/ash">/system/bin/sh
echo "/system/xbin/bb/ash \[email protected]">>/system/bin/sh
Click to expand...
Click to collapse
Please note the use of (redirect\\overwrite)> and (redirect\\append)>>.
This will overwrite sh with a script to load the desired shell, executing any command-line arguments passed, and preserve the permissions of the original sh file. You can manually set the permissions the same as they are for our sh0 backup if the permissions (root.shell)(0755) don't seem to keep.
Finally reset the read-only state of /system:
mount -o remount,ro /system
Click to expand...
Click to collapse
Now if you shell-in\\telnet-in you should get the ash prompt which unlike the Android sh default prompt, includes the present working directory(pwd) ie: '/#' instead of just '#'.
Note: A reboot should not cause the loss of the modification, but if does, copy the new sh script to your /data/local/bin location or something and copy it back via boot script or something.
Shell Scripts:
If you're like me, you discovered that Android didn't need the interpreter declaration comment in scripts, and thus may not have used them...Well, you will need to update your scripts to include them by adding something similar to the following as the first line of your scripts:
#!/system/xbin/bb/ash
Click to expand...
Click to collapse
Again, please note that I am using JF1.51 roms and the location of the busybox ash shell is what I'm listing; put the full location to the shell you intend to use as this location.
Without the interpreter declaration, ash simply complains 'not found' at the first command, as ash doesn't know how to interpret the script, and doesn't seem to default to the login shell.
Hope someone finds this helpful!
sweet. This is going to be very useful
BAM. thats sexy. i just did this on CM3.6.7.1. works like a charm.
scratches head. i'm lost. what does this do and how does this make my g1 better?
temporizer said:
scratches head. i'm lost. what does this do and how does this make my g1 better?
Click to expand...
Click to collapse
im not sure about the other features, but the one i installed it for is to have your working directory in front of ur prompt. ex:
Code:
/# cd /sdcard
/sdcard # cd /system/sd
/system/sd #
etc...
EDIT: Also, if you use ConnectBot, you'll notice with the regular sh, if u scroll up with tracball, you get BS characters on the prompt. with THIS one, when you scroll up, you get last command entered. VERY handy for when you mistype one character on a long-ass command.
I love you
Couldn't you do this?
Code:
mv /system/bin/sh /system/bin/sh0
ln -s /system/xbin/bb/ash /system/bin/sh
great job, i'm going to get ash working on my G1 (CM-3.6.7.1)
Thanks.
kanstin said:
Couldn't you do this?
Code:
mv /system/bin/sh /system/bin/sh0
ln -s /system/xbin/bb/ash /system/bin/sh
Click to expand...
Click to collapse
I tried this and it worked even after a reboot...
Sweet, I love the scroll back with trackball in the terminal!!! Me thinks this should get absorbed into the next Cyan release.
kanstin said:
Couldn't you do this?
Code:
mv /system/bin/sh /system/bin/sh0
ln -s /system/xbin/bb/ash /system/bin/sh
Click to expand...
Click to collapse
Yes, I reckon you could. Though I had done a few experiments where the symlink failed, but I'm fairly sure it was do to the link: /system/xbin/bb/ash -->../busybox and /system/bin/../busybox not existing...so I did it via script. Many ways to skin a cat they say.
Thank you all... this is fricken awesome!!
temporizer said:
scratches head. i'm lost. what does this do and how does this make my g1 better?
Click to expand...
Click to collapse
It gives a more advanced shell for when you use the command line interface or telnet into your G1. If you don't use the command line a lot, it won't help you.
As for specific benefits to the advanced version, it was listed in the first post.
Hi,
imho this is rather a hack that exposes you to the risk at least on CM to loose your
shell during boot as xbin.sqf the compressed squashfs filesystem containing
busybox is mounted rather late in the boot process. A cleaner solution would be to
move busybox to system/bin and link it to sh. That way you ensure that sh will
always be accessible during boot and also later on, thus not interfering with
further developments. A alternative could be to compile a standalone version
of busybox containing only ash (for size reasons, as size in /system/bin is precious)
copy that to /system/bin and link sh to it.
Seems to work fine on Dude's. Not really sure how it should open, but I type "ash" at the prompt and I get the /$ and /# if superuser. I also get the command history by rolling the trackball, which is a very nice feature.
Can i install this without using my PC?
temporizer said:
Can i install this without using my PC?
Click to expand...
Click to collapse
Should work using terminal.
Tried it on JACHero 2.7.1
I tried the hard link one and I get a read only fs error on the first move command. What should I chmod to get past that?
mugafuga said:
I tried the hard link one and I get a read only fs error on the first move command. What should I chmod to get past that?
Click to expand...
Click to collapse
Do this first before the mv and the symlink.
mount -o remount,rw /system
farmatito said:
Hi,
imho this is rather a hack that exposes you to the risk at least on CM to loose your
shell during boot as xbin.sqf the compressed squashfs filesystem containing
busybox is mounted rather late in the boot process. A cleaner solution would be to
move busybox to system/bin and link it to sh. That way you ensure that sh will
always be accessible during boot and also later on, thus not interfering with
further developments. A alternative could be to compile a standalone version
of busybox containing only ash (for size reasons, as size in /system/bin is precious)
copy that to /system/bin and link sh to it.
Click to expand...
Click to collapse
Is this in any way accurate? I dedicate my g1 to cyan's roms and wouldn't want anything to hinder any of the goodness that is cyanogenMod. Advice?
Load ash when terminal is started?
temporizer said:
Is this in any way accurate? I dedicate my g1 to cyan's roms and wouldn't want anything to hinder any of the goodness that is cyanogenMod. Advice?
Click to expand...
Click to collapse
Safest method will be to change to ash shell once terminal app is started (same as typing "ash" to switch shell from sh to ash). I don't know how to do it in android (in linux you could add it to your login script).
So if someone knows how to execute a command when we login using the terminal app, then switching to ash shell would work without fear of breaking any other functionality.
Hey everyone,
wesgarner said:
Zip Align reduces the amount of RAM used during processing running for a major speed increase in running the apps: http://developer.android.com/guide/developing/tools/zipalign.html
Click to expand...
Click to collapse
I had been messing about with a script to pull apks off my phone, zipalign them and then push them back, but then I saw wesgarner's CM build with a binary and script for use on your phone. I don't really want to mess round with flashing a ROM just for that though, so I've ripped them out and uploaded them below. Another reason is I want to run this manually (with GScript) rather than on boot (as it does in wesgarner's ROM).
I take no credit for this, the binary and script were both taken from wesgarner's CM buiild.
To "install" this, just adb push the two files in the zip below onto your phone with:
Code:
adb shell mount -o remount,rw /system
adb push zipalign /system/bin
adb push zipalign_apks /system/sd/zipalign_apks.sh
adb shell chmod 755 /system/bin/zipalign /system/sd/zipalign_apks.sh
adb shell mount -o remount,ro /system
Then anytime you want to run the script just do:
Code:
adb shell sh /system/sd/zipalign_apks.sh
Or in terminal:
Code:
su
sh /system/sd/zipalign_apks.sh
Has been tested on CM 4.2.7.1
ZipAlign
senab said:
Hey everyone,
I had been messing about with a script to pull apks off my phone, zipalign them and then push them back, but then I saw wesgarner's CM build with a binary and script for use on your phone. I don't really want to mess round with flashing a ROM just for that though, so I've ripped them out and uploaded them below. Another reason is I want to run this manually (with GScript) rather than on boot (as it does in wesgarner's ROM).
I take no credit for this, the binary and script were both taken from wesgarner's CM buiild.
To "install" this, just adb push the two files in the zip below onto your phone with:
Code:
adb shell mount -o remount,rw /system
adb push zipalign /system/bin
adb push zipalign_apks.sh /system/sd
adb shell chmod 755 /system/bin/zipalign /system/sd/zipalign_apks.sh
adb shell mount -o remount,ro /system
Then anytime you want to run the script just do:
Code:
adb shell /system/sd/zipalign_apks.sh
Or in terminal:
Code:
su
sh /system/sd/zipalign_apks.sh
Has been tested on CM 4.2.7.1
Click to expand...
Click to collapse
i do not even know what zipalign does .. but i did add this to my script
# lucid -z
so .. what does it do exactly?
Sweet... Thanks...
I was surprised that more than half of the Apps I have were already ZipAligned...
LucidREM said:
i do not even know what zipalign does .. but i did add this to my script
# lucid -z
so .. what does it do exactly?
Click to expand...
Click to collapse
APKs (as you probably already know) are just zip files. zipalign simply aligns the APK on 4-byte boundaries which Android is more efficient wrt memory access.
You can read more from Jean-Baptiste Queru at http://android-developers.blogspot.com/2009/09/zipalign-easy-optimization.html
Vermithrax said:
Sweet... Thanks...
I was surprised that more than half of the Apps I have were already ZipAligned...
Click to expand...
Click to collapse
Since the 1.6 SDK was released, the ADT does this automatically on APK export. Therefore any app which has been updated since ~September (and was developed using the ADT Eclipse plugin) will be zipalign'd. I was more surprised that 12 out of the 43 apps on my phone weren't aligned!
ZipAlign
senab said:
APKs (as you probably already know) are just zip files. zipalign simply aligns the APK on 4-byte boundaries which Android is more much efficient wrt memory access.
You can read more from Jean-Baptiste Queru at http://android-developers.blogspot.com/2009/09/zipalign-easy-optimization.html
Click to expand...
Click to collapse
that's awesome .. thanks for the link .. i hadn't read about that
Thanks much for this!
Here is a simple gscript to install zipalign after a wipe or new build flash.
You must first create directory /sdcard/zipalign and place zipalign from the zip in the OP there. Path to the file should now be /sdcard/zipalign/zipalign.
Place this script in your gscript folder (after removing .txt from the name) and load it in gscript with su permissions.
I also find it easier to run the script in the zip from the OP in Gscript as well. Instead of placing it in /system/sd run this (assumes zipalign_apks.sh is at root of C:\)
Code:
adb remount
adb push C:\zipalign_apks.sh /sdcard/gscript/zipalign_apks.sh
Then just load it into Gsrcipt with su permissions as with the other script.
Easiest of all may just be to use the commands within Lucid's script. But, I'm comfortable with Gscript, and I can make it 2 clicks away.
EDIT: First execution, you may want to run the original way, because guess what? Gscript isn't zipaligned. But it worked fine just the same.
worked great thanks.
Thanks. I didn't want to flash whole ROM to zipalign apps, so script was very handy.
Actually I've zipaligned only 2 apps, one of them was everybody loved Linda
so anyone wanna bless me with a terminal code to install the script?
garz said:
so anyone wanna bless me with a terminal code to install the script?
Click to expand...
Click to collapse
Read, its on the first post....xD
ZipAlign
garz said:
so anyone wanna bless me with a terminal code to install the script?
Click to expand...
Click to collapse
# lucid -z
yeah so su? then #lucid -z? cause that did nothing for me...
LucidREM said:
i do not even know what zipalign does .. but i did add this to my script
# lucid -z
so .. what does it do exactly?
Click to expand...
Click to collapse
I put a quick explanation of my script on my ROM page: here ya go (rough explanation)
Zip Align reduces the amount of RAM used during processing running for a major speed increase in dex-opt and running the apps, along with the RAM hack and a CC (or your userinit) boots speeds incredibly and better usability of apps (boot and system) in Android: http://developer.android.com/guide/d.../zipalign.html
Most developers have not used this yet (CM does ZipAlign his apps), but this does for the system apps provided from the now old Google Apps
Click to expand...
Click to collapse
senab said:
Since the 1.6 SDK was released, the ADT does this automatically on APK export. Therefore any app which has been updated since ~September (and was developed using the ADT Eclipse plugin) will be zipalign'd. I was more surprised that 12 out of the 43 apps on my phone weren't aligned!
Click to expand...
Click to collapse
Agreed. The Market won't let non-zipaligned apps be uploaded.
AndroidAppCritic said:
Agreed. The Market won't let non-zipaligned apps be uploaded.
Click to expand...
Click to collapse
it will really, it doesn't detect the diff
Also, SDK4 didn't really include an enforced ZipAlign like SDK5 (eclair) does
Plus I built the ZipAlign from source from eclair - so this script may not update them all perfectly
garz said:
yeah so su? then #lucid -z? cause that did nothing for me...
Click to expand...
Click to collapse
Unzip the files to your SD Card, then:
Code:
su
mount -o remount,rw /system
mv /sdcard/zipalign /system/bin
mv /sdcard/zipalign_apks /system/sd/zipalign_apks.sh
chmod 755 /system/bin/zipalign /system/sd/zipalign_apks.sh
mount -o remount,ro /system
Post deleted becoz it was redundant
can someone make a script for windows or a bat file that can zipalign a batch of apks? I am not that ofay with line commands and when i create a new theme (which i often do), i then have to go and zipalign every single apk i have altered 1 at a time..... i do:
Code:
zipalign -f -v 4 E:\app\theapp.apk E:\app\theapp.apk.out
senab said:
Unzip the files to your SD Card, then:
Code:
su
mount -o remount,rw /system
cp /sdcard/zipalign /system/bin
cp /sdcard/zipalign_apks.sh /system/sd
chmod 755 /system/bin/zipalign /system/sd/zipalign_apks.sh
mount -o remount,ro /system
Click to expand...
Click to collapse
This isnt working for me bc of the .sh after zipalign_apks .. do i rename the zipalign_apks to zipalign_apks.sh after unzipping?
edit:that worked THANKS!
hey,
whenever i flash a new rom i edit the zip to replace keylayouts, apps in /system and /data , bootscreens and some other stuff......
i now want to symlink some directories with a script which will be loaded during rom flash because otherwise i would need a pc to access it through adb...
the script i want FOR NOW (i may use it for other things in the future)
is about symlinking the
/system/customize/resource/bootanimation.zip to /data/local/bootanimation.zip
/system/customize/resource/android_audio.mp3 to /data/local/android_audio.mp3
i can do this through adb as i said but i'd prefer it to be done automatically by a script during flash.... i know the commands to use but i need a way to implement the script into the rom.....
i think it's like the a2sd+ script but i am not sure....
if anyone knows please help me
you need to split open your boot.img and modify the init.rc (the file where services are initialised at Android startup)
See this link for notes on working with the boot.img
you can create the symlinks directly in this file, have a look at the syntax and you should be able to work it out. The ln command doesn't work though, use the format:
Code:
symlink /system/customize/resource/bootanimation.zip /data/local/bootanimation.zip
Or you can create a dummy 'service' which executes a file on your filesystem (like /etc/rc.local) and put your "ln -s" commands in there.
Why not just create a custom update.zip with your changes only, then you can apply it after flashing any rom.
Klutsh said:
Why not just create a custom update.zip with your changes only, then you can apply it after flashing any rom.
Click to expand...
Click to collapse
How would you do this?
Say I wanted an update.zip that would remove plurk and add a certain app. How would I go about creating that?
removing and adding is easy with the update signer app.....i just want to add a script that symlinks directories at boot in order to avoid the use of a pc.....i tried the trick st0kes said and i am waiting for the flashing now to complete and send my feedback
nope it didn't work.....is there any specific place to put the command ????
i put it at the very end of the init.rc file
ok after a lot of reading i created a service which runs a folder with scripts...where i have the script that symlinks the files.....
service myscripts /system/bin/logwrapper /system/xbin/busybox run-parts /system/etc/myscript.d
oneshot
Click to expand...
Click to collapse
this is the service code
and here is the code i have into the "bootanimation" script which is inside the myscript.d folder
#!/system/bin/sh
mount /system
mount /data
ln -s /system/customize/resource/bootanimation.zip /data/local/bootanimation.zip
ln -s /system/customize/resource/android_audio.mp3 /data/local/android_audio.mp3
Click to expand...
Click to collapse
what am i doing wrong here ????? please someone with knowledge enlighten me!! the script does not run
damn....it's been a long night and still haven't found a way to do it !!!!!!
i tried all the followings:
1) added a file called "myscript" (it contained two lines with the symlink commands) in init.d folder in order to execute when the boot is complete - FAILED
2) added the same file into another folder and added a service at the bottom of the init.rc file that called it
service myscript /system/etc/myscripts/myscript
oneshot
Click to expand...
Click to collapse
-FAILED
3) added the SYMLINK commands into the init.rc file
a)at the bottom -FAILED
b) before the bootanim, bootsound services -FAILED
c) before the bootcomplete = 1 value in init.rc -FAILED
d) after sysinit execution in init.rc -FAILED
e) before sysinit execution in init.rc - FAILED
f) at the top after some lines of code in init.rc - FAILED
i read that HTC change the boot process and to run custom scripts at boot you must add their commands in "bootcomplete.bravo.rc"
i tried that too but FAILED again....i think this is logical cause these scripts are executed after the boot and just when the phone is gonna show the pin dialog....
i think it's something to do with the init.rc file...but i dunno what else to add....
is there anything i have to mount in order to symlink ???? add busybox to something or anything ??????
PLEASE someone with success at scripting like a2sd+ please help me
Try naming your script
Code:
03BootAnim
and place it in
Code:
/system/etc/init.d
Also don't forget to chmod +x it
how to chmod +x ??? nvm i did it...i am now signing it to try it
in adb
Code:
adb shell chmod +x /system/etc/init.d/03BootAnim
chmod 755 does the same, makes it executable by the system
Klutsh said:
Try naming your script
Code:
03BootAnim
and place it in
Code:
/system/etc/init.d
Also don't forget to chmod +x it
Click to expand...
Click to collapse
hey klutsh i tried what you said but it didn't work...
look i created the file
Code:
03BootAnim
and placed it into the
Code:
/system/etc/init.d
the commands i have into the file are these
Code:
#!/system/bin/sh
ln -s /data/local/bootanimation.zip /system/customize/resource/bootanimation.zip
ln -s /data/local/android_audio.mp3 /system/customize/resource/android_audio.mp3
ok i edited the commands like these but no result too.....
Code:
#!/system/bin/sh
busybox mount /system
busybox mount /data
busybox ln -s /data/local/bootanimation.zip /system/customize/resource/bootanimation.zip
busybox ln -s /data/local/android_audio.mp3 /system/customize/resource/android_audio.mp3
i checked with the
Code:
ls -l /system/etc/init.d
command and the permissions are all the same (they are all enabled i think, -rwxr-xr-x )
i wiped everything, flashed, rebooted but no bootanimation!!! the default android logo with the moving shade appears (i have deleted the animation in the system/customize/resource folder in order for the symlink to work)
what am i doing wrong ???? is there something with the script ?
I'm trying to get this working, and so far it is running before the bootanimation, but I get
Code:
run-parts: can't execute '/system/etc/init.d/03BootAnim': No such file or directory
Yet it is available...
what commands do you have in yours ????
maybe a reboot will fix it o yours since it will rescan ?
edit: hey klutsh i logcated my boot and i see that the symlinks do not work cause it says that /system/customize/resource/bootanimation.zip and android_audio.mp3 directories are read-only file systems
That's the problem then.
Already got a fix that you apply once only to a flashed rom then the boot anim runs from /data/local and can be replaced.
http://www.asificanrememberthat.com/DeLite/BootAmin_to_Data.zip
Flash that after any Sense rom that normally has bootanimation in /system/customize
It will delete the 2 files in /system/customize/resource
flash my own bootanimation to /data/local
create the required symlinks that survive reboot's.
You can then just replace the files in /data/local as needed.
as i see you made it with the update sign and packager isn't it ????
nice idea....
BUT why can't we access /system files through boot ???? is there any way to get root access at booting ???
THANKS YOU VERY MUCH for the great effort you made....
is there a way to implement the update-script into the 03BootAnim in order not to have to flah anything ????
the reson i want this is cause i am cooking my roms on my own and i want them to have all i need inside....not having to flash mod1, mod2 etc
It's a feature of the desire, no write access to /system unless in recovery.
You can just take those bit's from my update-script and add them to your own rom's script.
oh yes...this is what i was asking i have tow update-scripts though, one old and one in the android.new folder
i am using dsixda kitchen....in which should i put it ??? does it matter where is it?
edit: found it....signing to flash
HURRAYYYYYYYYYYYYYYYYYYYYYYY
hey klutsh i thank you a lot.....
it was so easy to do it just copy paste the update-script but we (I) took the hard way of READ-ONLY file system....anw i learned A LOT (if you think that i am reading 15hours constantly about this)
PROBLEM SOLVED
You can delete the android.new folder, it isn't used.
Hi,
Sorry if it's not the good forum, I have looked for the good one but I'm not very easy with English.
I want to sort out files by date in directories to delete automatically oldest backup files with a script. I have Cyanogenmod 11 on a Samsung Galaxy S2. I have installed Busybox (Stephen Stericson) on my phone from the Playstore to use the command ls -t because in standard we have only ls and ls -l. But when I tape ls -t, I have an error message "Unknown option". I've tried with Cyanogenmod 12 but I have the same problem.
I would want to know if ls -t doesn't function in BusyBox or if I have another problem.
Thank you.
No response :crying: .
Can somebody tell me if he haves a BusyBox which enables to use the command and which is this BusyBox : ls -t?
Thank you .
Are you sure you are using busybox?
try running: busybox ls -t
Ok, I have to type "busybox" first. I will try it, thank you.
Ok, it works when I add "busybox" in the command . I'm just a little surprised, I had understood the busybox commands replaced the shell commands.
You can also add: busybox sh
to your script and after that you could easily use ls -t without busybox.
Ok, thank you but it's not annoying to add "busybox". I don't create a lot of scripts .
Now I try to solve the problem to move files to the sdcard. It worked fine in 4.1.2 but with Cyanogenmod 11, I have a cross device link. I tried also "cp -p" to keep initial attributes but I have "Operation not permitted".
Well currently i am using jackpal.androidterm emulator and always needed to type 2 commands bf new entriws would be allowed.
Namely the following commands. 1. startup su by running su command. 2. mounting r/o to r/w of /system mount blabla.
Well here comes in my helpfull hint (^o^)
go into settings menu and alter the startup command send to shell into this line of text.
su && busybox mount -o remount,rw /system
now ur emulator will always start with su approved (#) and /system
running as r/w mounted. u could add more commands as long as u
add these symbols btween commands && . take note there aint spaces inbetween or it wont work.
ohh and easy command help for terminal u get by typing the next
line of text. replace the COMMAND with desired item.
busybox COMMAND --help
use the busybox command on its own to see commands it can use..
hope helps someone who wanna know more about busybox and terminal emulator commands.
And if u wanna use bash scripts just add it to the startup command.
su && busybox mount -o remount,rw /system && bash
u need bash installed of course, and i used an alternate path so the program stays clean. i used /data/local/foldername to store my bash, busybox, android toolbox so they wouldnt get corrupted. the android toolbox i found in my /system/bin and i put bash and busybox into /system/xbin and all seems to work fine.
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