commandlinefu.com is the place to record those command-line gems that you return to again and again.
Delete that bloated snippets file you've been using and share your personal repository with the world. That way others can gain from your CLI wisdom and you from theirs too. All commands can be commented on, discussed and voted up or down.
You can sign-in using OpenID credentials, or register a traditional username and password.
First-time OpenID users will be automatically assigned a username which can be changed after signing in.
Every new command is wrapped in a tweet and posted to Twitter. Following the stream is a great way of staying abreast of the latest commands. For the more discerning, there are Twitter accounts for commands that get a minimum of 3 and 10 votes - that way only the great commands get tweeted.
Use your favourite RSS aggregator to stay in touch with the latest commands. There are feeds mirroring the 3 Twitter streams as well as for virtually every other subset (users, tags, functions,…):
Subscribe to the feed for:
Wow, didn't really expect you to read this far down. The latest iteration of the site is in open beta. It's a gentle open beta-- not in prime-time just yet. It's being hosted over at UpGuard (link) and you are more than welcome to give it a shot. Couple things:
An old USB A/B cable is all you need to make your own Smart Home hardware!
Cut off and discard the B-portion of the USB cable. On the A side, connect the RED (+) and WHITE (D-) wires via a 1 kiloohm resistor.
Now plug the cable into a USB port on your Linux computer. Your hardware is ready!
Run the above command after changing variable mysms to your personal email-to-SMS gateway info as required by your cellular service provider.
The command uses the amazing usbmon tool (see link below) to detect the cable.
For the curious, to view the raw usbmon output, run this command: (Also see the sample output)
usbmon -i usb0
How does it work? When the red and white wires are connected (via the 1 kiloohm resistor) the USB hardwere is tricked into thinking that a new USB device is trying to start up.
We then use the usbmon utility to capture the host USB events as it tries to talk to the cable.
The expect utility watches the usbmon stream and waits for the disconnect text "-2:128" before sending the SMS message.
Finally, the sendmail tool is used to email the SMS message to your smartphone via your cellular provider's SMS-to-email gateway.
As a result, when the electrical connection between the red and white wire is interrupted, or the USB cable is unplugged from your computer, you get an SMS notification of the disconnect event on your smartphone.
Could this be the cheapest smart home gadget ever? What are YOU going to sense with it?
Please let me know in the comments and please don't forget to click it up!
Crude, but works. Note for security, /data/ will be inaccessible unless your device has been *rooted*.
On the other hand, if a device has been rooted, its data is now wide open to anyone with a USB cable and the above "one-liner".
`adb` is one of the platform tools in the android SDK.
To get SMS messages:
adb pull /data/data/com.android.providers.telephony/databases/mmssms.db ; sqlite3 -batch <<EOF contacts2.db <CR> .header on <CR> .mode tabs <CR> select * from sms; <CR> EOF