monline

I don't know about earlier releases, but ICS has a bash shell in /system/bin. If you start a shell through ADB (eg. ./adb shell), it'll start /system/bin/sh as a shell which is a symlink to bash. Unfortunately ADB does not add the -l option to the shell's commandline, thus the shell will not be a login shell and it'll not look for _any_ configuration files.

Pretty thorough explanation of the boot process. Of course this was written some 4 years ago ... but I guess the basics remained the same.

The attached link points to a quite detailed explanation on the matter. However here're two other, similiar guides:

• Android C native development using the NDK under Windows
• Hello World C program using Android Toolchain

Well, this is really an easy one. I guess people just starting to get to know linux might find it a bit tricky though. The command is this:
The -perm -4000 option matches files with the setuid bit set. And the -perm +0111 option matches files for which any of the executable bits is set. This command might come handy if you've a rooted Android phone and would like to keep tabs on what executables get setuid root privileges (besides the apps that run something through su).

A good source of information on the depths of Android's structure and inner working.

The instructions are very precise, following them you get your statically linked strace.

I've found three apps that are worth to mention:

• tPacketCapture: works only on Android v4.0+, but requires no root access (and captures only TCP/UDP, but that's sufficient for most use cases)
• Shark for Root: seems to be the most popular choice, but hasn't been updated for the last 1.5 years (requires root access and is a frontend for tcpdump)
• Packet Sniffer: this one is quite similiar in features to Shark (hasn't been updated for years, requires root and is a frontend for tcpdump)
• SimplePacketCapture: a very basic UI, requires root access (probably a frontend for tcpdump, but the app's description does not say so)

On a Mac I need to trace an app only rarely so I tend to forget the command's name. Maybe writing it down here will help me remember. It's dtruss.

It seems I won't use my Galaxy Nexus on my LTSP thin client through my new USB cradle any time soon. Probably I'll dig up the necessary LTSP modifications to make it work, but not right now. Wi-Fi works just fine. Or almost fine. For some reason if I do long data transfers, the transmit speed gradually fades away ... right until connection is lost. Try to copy a 2GB file from your Nexus to an SSH server (via some SFTP client, eg. AndFTP) and you'll most probably see what I mean.

I was looking for a oneliner to start a HTTP server and serve static content from a directory. Python's SimpleHTTPServer is the perfect match for the job. Python is already installed by most linux distributions by default and it's easily available for a lot of other platforms as well. Starting your own little HTTP server was never easier than this:
And to access it, open the http://localhost:8080/ URL.