General Linux question - General Questions and Answers

OK so I am running Ubuntu 9.04. I have a couple of java files that I would like to be able to run from terminal from anywhere in the system. Is this possible? Basically I don't want to have to move my target file to the folder that contains the .jar file every time I run it. Does that make sense?
Any help would be appreciated. I have been pretty much reliant on Linux for the past 3 months but I haven't figured this one out yet and it is kinda bugging me.

http://www.google.com/search?source...nG=Google-søgning&meta=lr=&aq=0&oq=linux+path
adding their dir to the path could fix that if I understand you correctly

Related

Project: apk2

hi folks!
i'm not a developer but sometimes i do some scripting.Now i'm working on a project that called "APK2",and i think that could be useful!
Some months ago, I thought "why don't create a package manager and a package system to install real linux packages, and not just apps? I may want to install some command-line tools to run with terminal emulator" then I wrote this script, named apk2.sh, that installs some particular packages (I wrote another script to easily create this type of packages): he simply does the apt-like un-tar in /, but it installs a config directory too, to remove the installed packages.
It supports the preinst, postinst, prerm, postrm scripts too.
Tell me if it could be interesting, and I'll put it here.
If so, I need testers
If not, simply tell me, and I give up.
so could you be able to run like air crack through debian with this or?
olvap377 said:
so could you be able to run like air crack through debian with this or?
Click to expand...
Click to collapse
I could be able to run it on Android if someone can port all the libs to armv5e
I know, you have to do the porting in order to run it, but for example if there is the package for debian armv5 I think it should work if you take all the deps from the repo (may need some repacking, just to remove the CONTROL folder, and maybe to add the file needed to uninstall and various preinst, postinst etc. ).
And you don't need to run a debian or an ubuntu on Android, that's not really fast.
What do you think?
i think that this sounds really good and if it worked fully it would be a major addition to android development im hoping youll continue with this
olvap377 said:
i think that this sounds really good and if it worked fully it would be a major addition to android development im hoping youll continue with this
Click to expand...
Click to collapse
Thank you!
Any tester? I attach the scripts to now how apk2 works, just run it without any parameter, and it will show you
The other script it's simple to use, you just have to run it once to create in your home the basilar directory tree, you have to complete it and put the files in it, then you just have to put your preinst-postinst-prerm-postrm scripts in the ~/yourpackage/system/etc/apk2 directory, if you have some.
Then run the script again, insert the same package name, and here we are! The package is build! It's in the packagename directory in your home, in .apk2 and in .tar.gz, if you have to edit something do it on the tar.gz, and then change the extension in .apk2
PS: rename the files *.sh.txt into *.sh, because this forum doesn't allow .sh attachments...
xela92 said:
Thank you!
Any tester? I attach the scripts to now how apk2 works, just run it without any parameter, and it will show you
The other script it's simple to use, you just have to run it once to create in your home the basilar directory tree, you have to complete it and put the files in it, then you just have to put your preinst-postinst-prerm-postrm scripts in the ~/yourpackage/system/etc/apk2 directory, if you have some.
Then run the script again, insert the same package name, and here we are! The package is build! It's in the packagename directory in your home, in .apk2 and in .tar.gz, if you have to edit something do it on the tar.gz, and then change the extension in .apk2
PS: rename the files *.sh.txt into *.sh, because this forum doesn't allow .sh attachments...
Click to expand...
Click to collapse
in non-linux speak (layman's terms), what could i do with this...my interest is peaked
what are some "real linux packages" that one might want
tnpapadakos said:
in non-linux speak (layman's terms), what could i do with this...my interest is peaked
what are some "real linux packages" that one might want
Click to expand...
Click to collapse
i.e., the one olvap377 mentioned: air crack (I think it's possible).
or, we can run every app that does not need X server.
I created some demo packages (containing 2 scripts), one is SwapTools, and lets you enable/disable swap with 2 simple cmds (swap-enable and swap-disable); at the first run it collects some info, like the swappiness and the swap partition, then it saves the conf in a file (using swap-disable with --remove-conf will remove the conf file).
Another one I created is remount: you can remount your /system partition rw or ro just by typing on a terminal emulator
Code:
remount rw
or
Code:
remount ro
But you can try to use other appz compiled for armv5 processors, like all the debian apps, except for the one with GUI (we run on framebuffer, no X server :/ )
PS: I attach the pkgs, I added the .zip extension, just rename it in pkgname.apk2
Honest question: Why reinvent the wheel? Other embedded Linux projects have used ipkg to good effect, or its close relative opkg (refs from same link) which is used by Openmoko. A port of this to Android systems which have uClibc should be nearly trivial.
xela92 said:
i.e., the one olvap377 mentioned: air crack (I think it's possible).
or, we can run every app that does not need X server.
I created some demo packages (containing 2 scripts), one is SwapTools, and lets you enable/disable swap with 2 simple cmds (swap-enable and swap-disable); at the first run it collects some info, like the swappiness and the swap partition, then it saves the conf in a file (using swap-disable with --remove-conf will remove the conf file).
Another one I created is remount: you can remount your /system partition rw or ro just by typing on a terminal emulator
Code:
remount rw
or
Code:
remount ro
But you can try to use other appz compiled for armv5 processors, like all the debian apps, except for the one with GUI (we run on framebuffer, no X server :/ )
PS: I attach the pkgs, I added the .zip extension, just rename it in pkgname.apk2
Click to expand...
Click to collapse
thanks dude
olearyp said:
Honest question: Why reinvent the wheel? Other embedded Linux projects have used ipkg to good effect, or its close relative opkg (refs from same link) which is used by Openmoko. A port of this to Android systems which have uClibc should be nearly trivial.
Click to expand...
Click to collapse
I have also an Openmoko phone
I know very well ipkg/opkg, it could be interesting a porting, but I thought it was better to create a little lighter script to do it, because 1. a script that uses sh is usable in every system, you can either to install armv5e pkgs, or any armv* pkg, you have just to change some little things; 2. I don't know how to port, and I'm not able to do programming.
If you are interested and know how to do a porting, it could be very useful, because opkg has really lots of functions...
I just did what I could
xela92 said:
I have also an Openmoko phone
I know very well ipkg/opkg, it could be interesting a porting, but I thought it was better to create a little lighter script to do it, because 1. a script that uses sh is usable in every system, you can either to install armv5e pkgs, or any armv* pkg, you have just to change some little things; 2. I don't know how to port, and I'm not able to do programming.
If you are interested and know how to do a porting, it could be very useful, because opkg has really lots of functions...
I just did what I could
Click to expand...
Click to collapse
Ahh, okay, I see what you mean. Fair enough; I haven't seen your work so far, I was just concerned you were doing unneeded work. 'Course sometimes it's good to do that for the learning experience.
I don't have a full build setup for Android, so I can't recompile (I do have a full build setup for building Optware packages, but that's not quite the same), but I believe most custom ROMs ship uClibc. I'm not familiar enough with uClibc to know if you need to build against an exact version, though you could copy opkg from your Openmoko phone for the heck of it and see if it runs
olearyp said:
Ahh, okay, I see what you mean. Fair enough; I haven't seen your work so far, I was just concerned you were doing unneeded work. 'Course sometimes it's good to do that for the learning experience.
I don't have a full build setup for Android, so I can't recompile (I do have a full build setup for building Optware packages, but that's not quite the same), but I believe most custom ROMs ship uClibc. I'm not familiar enough with uClibc to know if you need to build against an exact version, though you could copy opkg from your Openmoko phone for the heck of it and see if it runs
Click to expand...
Click to collapse
Ya mean, copy the binary??? If so, it won't work of course, because the architecture of the openmoko processor is armv4t, it wouldn't see my binary
Nethertheless, if someone is interested
PS: please, could someone test my scripts? Thank you dudes
xela92 said:
Ya mean, copy the binary??? If so, it won't work of course, because the architecture of the openmoko processor is armv4t, it wouldn't see my binary
Nethertheless, if someone is interested
PS: please, could someone test my scripts? Thank you dudes
Click to expand...
Click to collapse
Heh, oh, older ARM core. Not paying attention. I will now stop hijacking your thread
olearyp said:
Heh, oh, older ARM core. Not paying attention. I will now stop hijacking your thread
Click to expand...
Click to collapse
No problem, man
No testers?
Please give me a feedback. If u want, I can make some apk2 by debs for armv5... Then I accept hints like "howto manage dependencies", 'cause I've no ideas...
"Tester"
xela92 said:
Please give me a feedback. If u want, I can make some apk2 by debs for armv5... Then I accept hints like "howto manage dependencies", 'cause I've no ideas...
Click to expand...
Click to collapse
Hi I have and HTC Hero from Sprint, I'm not a linux power user but I spent lots of time in my computer running Ubuntu just for 2 big reasons 1 freeware and 2 it has the best an simplest packet manager... I love deb files that installs like any .exe win programs I love that! I'm son not a coder and have little to no skills under Linux shell I use my sudo nautilus commands and so because I need it but I hate to untar or tar gz crap... for me that it old and useless some linux power user may get offended by that comment but hi times changes we love GUI... if you manage to post prints screens or a word open office or PDF documentation dummy proof I'm very up to be a Happy tester... the other thing I'm a Digital Graphic Designer if you need some design for a GUI and can try to help you in making and eye candy app...
Here it the way I will love to see grow this project... finding a way to installed it as an apk file like others in the android market so users can install the app easy then...in top of that a simple GUI to browse to the SD card in order to get the apk2 file... you where talking about not being able to run programs that has GUI that it is sad but still interesting but a lot of work to do without a good community because that means that all GUI may need to be re-design to the different resolution on the phones and be touch friendly...
I'm not sure if I'm helping at all but I love the big picture behind your project...
I'm porting opkg on Android, but i'm can't tell that's a trivial task )))
i also wrote simple howto "building and porting linux apps for android from scratch", but on russian. If needed i can do some translating and put here too.
Also may be we can open project for buildroot-like framework for android and opkg's repository. In my how-to i'm use crosstool-ng + gcc + uClibc.
XVilka said:
I'm porting opkg on Android, but i'm can't tell that's a trivial task )))
i also wrote simple howto "building and porting linux apps for android from scratch", but on russian. If needed i can do some translating and put here too.
Also may be we can open project for buildroot-like framework for android and opkg's repository. In my how-to i'm use crosstool-ng + gcc + uClibc.
Click to expand...
Click to collapse
Wow! Please do some translating!
But, when you finish the porting, how will you manage to port the packages?
Will you use the debian pkgs changing the extension? Would it work?
Thanks a lot!
No, we want to create only android repository of packages, based on opkg (ipkg)
for arm, mips and others platfofms.

[Q] Need help with PATH variable in ADB!

So, like a noob, when I was adding to the path variable while setting up ADB on my laptop I managed to completely overwrite the PATH with the addition. Yeah yeah, I know dumb mistake. I just did a copy and paste so there were no typo's. Lesson learned: type it out and double check it for now on. I attribute it to being up too late and inhaling too many Monster's.
Can anybody help me with the whole path? Or at least what the format of it should be so I can cobble it together based on where everything is on my laptop.
Some background: I am setting up my Nook Color to run Honeycomb off the SD card and was in the process of trying to get the google apps onto it. I have a 64-bit version of Windows 7. Everything is in the root folder (C:\) and the drivers are already in there.
All you're entering in there is the path to the sdk phone-tools folder. That's it. So figure out the path something like: c:\sdk\phone-tools then name it adb. I assume this is what you're trying to do?
Here is the path variable from my 32bit Windows 7
%SystemRoot%\system32;%SystemRoot%;%SystemRoot%\System32\Wbem;%SYSTEMROOT%\System32\WindowsPowerShell\v1.0\
Hopefully this will at least get you started if it isn't the same on the 64bit.
Just as a note, I warned someone else that the instructions for adding the ADB path were incorrect, that the ADB path needs to be appended to the end of the existing path, not overwrite it.
Thanks. I'll try this.
If anyone else has any input, it would be greatly appreciated.
%SystemRoot%\system32;%SystemRoot%;%SystemRoot%\System32\Wbem;%SYSTEMROOT%\System32\WindowsPowerShell\v1.0\;C:\adb\android-sdk-windows\platform-tools
Mine looks the same as above poster on my 64bit laptop.

[Q] Rar on android.

Hi:
I've recently started to develop my own comic reader. The problem I've come up with is cbr files, which are esentially rar files. Now I know there are comic readers out there (all of them, I think) that support cbr files. So there is a way of doing this, I just can't find how.
In the rarlabs official page (search google rar addons and it's the first page) there are several options. I would like to know if I download the commandline arm unrar how I could install it on Android (I have a motorola Xoom, it would be for Honeycomb), assuming that is correct.
If this is not an option is there a command line unrar application that I could call from my own? and How would the code be (to call an external application, that is)?
If the above is not possible, what is the way to get to unrar something in android?
The only real option I've seen would be to use junrar (hosted on github)
But it seems complicated and I'm not sure it works very well as I've seen a lot of conflicting reports.
Thanks for any help!
Try http://www.all-freeware.com/results/rar/for/android to unpack rar on Android.
Success,
Senax
Hi:
I'm not exactly sure what you wanted me to try. There is nothing in that page that would allow me to uncompress a rar file on android. Only a bunch of unrar utitilities and some android things but they are not related, that is, there is nothing that says unrar that also works on android.
thanks anyway.
Unrar
great app available here: androidzoom (dot) com/android_applications/tools/unrar_dhpu.html
Cheers,
Romuloxiii
Hi:
It's seems that I didn't make myself clear.
I want to develop an android application that needs to unrar files. Is there a way to call the unrar application from my own code?
If so, can you tell me how?
Otherwise, I appreciate the effort, but I can't use that.
Thank you very much!
You can bring the unrar binary along in the /asset of your app,
on first launch copy it to your apps /file directory, chmod +x it, and use exec("sh") to unrar the files from shell.
oh, I see. I think I get the the idea but I don't understand all the instructions.
What did you mean by importing thebinary on my asset?
If I do the step above why do I need to copy the binary on first launch?
Don't I need root privileges too chmod it? And how do I do it from my source code?
And finally where can I find the command line use of the application? Or is it the same as the Linux version?
I know there are a lot of questions, but please keep in mind that I'm very new at doing this.
Thanks for all the help!
You need to put it as asset to bring it along.
You need to copy it because asset files are not directly accessable.
You don't need root to chmod the file in your own directory.
You do it by using a shell from your code i.e. Process.exec("sh")
And finally you want to program the app not me,
so don't be lazy and invest some time.
Google google google google...
If there are still questions left after that, you may ask again .
Ok, I'll try it and get back to you!
Thanks!
Sorry for my lazyness, but I've been Googling for a good half hour without finding a simple 'unrar' binary executable compiled to run from terminal on rooted ARMx32 device. I don't want bloated GUI APK's or libraries for development implementation, but just the plain command line interface executable. Anyone, please? It's a pity they haven't baked it into Busybox as an applet, IMO.

Create own Rom

It seems to create your own rom is more involved than I thought. I knew I should have learned linux. I wanted to fool around and use different browser .apk files from one rom to another. I messed around with this when I had my blackberry. It also seems like its easier to brick your droid. With blackberry I had a list of .cods same as .apks to use. So to open your .tar or .md5 you need android-sdk and then use adb commands? Is there a list of which system files that can be changed from one update to another. I did some searching but I guess not enough. Is there a quick version to create I guess a system dump with what files that can be changed without killing you phone? From what I read you have to use Odin to extract files to your sd card then to your computer or use Sdk with commands. Once extracted to to use a browser one to another you transfer the .apk other files. Do I have the basics or is it way over my head which is why we have developers?
blueis300 said:
It seems to create your own rom is more involved than I thought. I knew I should have learned linux. I wanted to fool around and use different browser .apk files from one rom to another. I messed around with this when I had my blackberry. It also seems like its easier to brick your droid. With blackberry I had a list of .cods same as .apks to use. So to open your .tar or .md5 you need android-sdk and then use adb commands? Is there a list of which system files that can be changed from one update to another. I did some searching but I guess not enough. Is there a quick version to create I guess a system dump with what files that can be changed without killing you phone? From what I read you have to use Odin to extract files to your sd card then to your computer or use Sdk with commands. Once extracted to to use a browser one to another you transfer the .apk other files. Do I have the basics or is it way over my head which is why we have developers?
Click to expand...
Click to collapse
Its way over your head! But even devs had to start somewhere. Guys like JT learned everything he knows thru google fu and he actually got the fascinate recognized cyanogen. So don't give up!
Sent from my Gummy Charged GBE 2.0 using XDA App
I would love to start to learn how to dev.
Any one could point me in the right direction?
Lol Yeah I figured it was above me but will keep reading, ask some questions and see what happens.
blueis300 said:
It seems to create your own rom is more involved than I thought. I knew I should have learned linux. I wanted to fool around and use different browser .apk files from one rom to another. I messed around with this when I had my blackberry. It also seems like its easier to brick your droid. With blackberry I had a list of .cods same as .apks to use. So to open your .tar or .md5 you need android-sdk and then use adb commands? Is there a list of which system files that can be changed from one update to another. I did some searching but I guess not enough. Is there a quick version to create I guess a system dump with what files that can be changed without killing you phone? From what I read you have to use Odin to extract files to your sd card then to your computer or use Sdk with commands. Once extracted to to use a browser one to another you transfer the .apk other files. Do I have the basics or is it way over my head which is why we have developers?
Click to expand...
Click to collapse
Look up harvard's cs50 course.. Its free and online and will get you started.. Ide post a, link.. But I'm lazy so google it
Sent from my SCH-I510 using XDA App
ty ace
i'll look into it, I've been looking for info for awhile, and was wondering where to start reading up on a "how to"!

Possibly Close To Solving Java on Windows RT?

Alright I've searched for a while to find a way to get my Surface 2 to run .java files as I have Notepad++ on here. I've seen that there is a Java version for ARM architecture but it's for the Raspberry Pi.
What I've done so far, and I'm hoping that someone else will be able to take it further as it will be a very valuable tool, is;
-Download the Java file 'Linux ARM 32 Hard Float ABI' from http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html
-Extracted the .tar.gz file using 7Zip, then extracted the .tar file the same way.
-Moved the jdk folder into C:\Program Files\Java (where it would go if being installed on a normal Windows computer)
-I then used an elevated Command Prompt to open Environment Variables and added JAVA_HOME to the system variables with the value 'C:\Program Files\Java\jdk1.8.0_73'. I also edited the Path variable to include 'C:\Program Files\Java\jdk1.8.0_73\bin'
Now as far as I know surely that's half the job done? But if I try and do anything in cmd that starts with 'java' it says it's not recognised.
Have I done the Paths wrong? Another thing I noticed is that on a Windows 10 PC there are also Java files in 'C:\ProgramData\Oracle\Java\javapath' but this is the only difference between Java on my laptop and Surface.
The problem is these files are compiled for x86 or x64 architectures and won't do anything on my Surface.
Considering the files in ProgramData are now the only Java differences between my laptop and my surface and I've been told it's possible to install Java without using the installer and just copying files across a system, would it be possible for anyone to find a way to have those files on an ARM system or a way to run it without those?
Bear in mind this is the first time I've properly tried to do anything like this so if it's a bad idea please let me know nicely lol. I just haven't seen anyone go down this route, maybe there's a reason but it intrigued me so I thought I'd ask.
Thank you
You can't run Linux binaries on Windows. So downloading the Linux version of JAVA will not work.
EDIT: It's an interesting concept. It should be theoretically possible to compile OpenJDK to work on RT.
abtekk said:
You can't run Linux binaries on Windows. So downloading the Linux version of JAVA will not work.
EDIT: It's an interesting concept. It should be theoretically possible to compile OpenJDK to work on RT.
Click to expand...
Click to collapse
Oh I see, yeah I wasn't sure how far it could go but I thought I'd put it out there. I have absolutely no idea how to go about compiling that so I'm hoping someone sees this and does everyone a favour as this would be an extremely useful tool to have!

Categories

Resources