Google India has just introduced a free SMS service called Google SMS Channels that lets you subscribe to news alerts, blog updates and other kinds of information like horoscopes, jokes, stocks or even cricket scores via SMS text messages.
If you are based in India and like to subscribe to this site on your mobile phone via SMS, please join the Digital Inspiration SMS channel on Google. You don’t pay anything to send or receive SMS messages using Google SMS Channels.
Google SMS Channels, which seems to have lot in common with SMS Gupshup, is free both for content publishers as well as mobile phone users who subscribe to text updates via SMS.
Families or friends can create private SMS groups on Google SMS channels and stay in touch via SMS without paying any fees to their mobile carrier.
Other than receiving blog RSS feeds via SMS, you may also use the Google SMS service to get news alerts and weather information on your phone.
Another interesting part – you don’t really need a mobile phone to send an SMS to your group as there’s an option in Google SMS channels that lets you can compose and send SMS messages via the web itself. It supports English, Hindi, Telugu, Tamil, Malayalam and Kannada.
Google SMS channels currently works only with with phone numbers of India but they are “working towards making this service available to international numbers.” Thanks Amit Somani.
To search for an SMS channel from the mobile phone, just SMS ‘SEARCH ‘ to 9870807070.
To unsubscribe to an SMS channel from the phone, SMS ‘OFF ‘, to 9870807070 where is the name of the channel.
Tuesday, August 4, 2009
Upload Photos to Twitter via Flickr Email
How do you share photographs with friends on Twitter?
You probably upload them to an online photo sharing site (like Flickr or Picasa Web Gallery) first and then copy-paste the web address of the uploaded image into your Twitter client. Or you prefer to use Twitter specific services like Twitpic that automatically send a "tweet" on your behalf as soon as the image is uploaded.
If that’s your workflow, consider this. You can now integrate your Flickr account with Twitter such that the combination works just like TwitPic. You upload a picture to your Flickr photo gallery and it will instantly show up in your Twitter stream as in this example.
How to Connect Twitter & Flickr
It’s a simple process. Open this link on Flickr.com and click "Head over to Twitter now" for giving permission to Flickr to post messages on to your Twitter stream. It uses OAuth so you don’t have to share your Twitter password anywhere.
Once your Twitter account is linked with Flickr, you’ll get a slightly complex email address. Now if you like to Twitter a photograph (or a screenshot image), simply compose a new message in your email client, attach the relevant image and send this email to the address provided by Flickr.
The subject line of your email message becomes the title of the photograph on Flickr while the email body becomes the description.
This method of posting images is actually very handy for mobile phone users. Just capture a picture with the built-in camera, send it to Flickr via email and it shows up in your Twitter network as well.
Can I uses Facebook or my own Blog with Flickr
In the above scenario, we used Flickr as the main storage point. However, if you are more active on Facebook or feel like using your own blog to host images, you can do that easily via the awesome Posterous service.
Just associate Facebook, Twitter, Flickr or even your blog with Posterous and now you can publish the same image across any of these sites via a simple email.
For instance, if you need to upload an image to Facebook, send an email to facebook@posterous.com. If you like to upload the same image to Facebook as well as Twitter, address the message to facebook+twitter@posterous.com. It’s that easy.
Flickr or Posterous?
Both Posterous and Flickr are excellent options for uploading images on the web via email but with Posterous, you don’t have to remember any complex email addresses. The other advantage is that Posterous can be integrated with multiple social sites while Flickr works only with Twitter and blogs for the moment.
You probably upload them to an online photo sharing site (like Flickr or Picasa Web Gallery) first and then copy-paste the web address of the uploaded image into your Twitter client. Or you prefer to use Twitter specific services like Twitpic that automatically send a "tweet" on your behalf as soon as the image is uploaded.
If that’s your workflow, consider this. You can now integrate your Flickr account with Twitter such that the combination works just like TwitPic. You upload a picture to your Flickr photo gallery and it will instantly show up in your Twitter stream as in this example.
How to Connect Twitter & Flickr
It’s a simple process. Open this link on Flickr.com and click "Head over to Twitter now" for giving permission to Flickr to post messages on to your Twitter stream. It uses OAuth so you don’t have to share your Twitter password anywhere.
Once your Twitter account is linked with Flickr, you’ll get a slightly complex email address. Now if you like to Twitter a photograph (or a screenshot image), simply compose a new message in your email client, attach the relevant image and send this email to the address provided by Flickr.
The subject line of your email message becomes the title of the photograph on Flickr while the email body becomes the description.
This method of posting images is actually very handy for mobile phone users. Just capture a picture with the built-in camera, send it to Flickr via email and it shows up in your Twitter network as well.
Can I uses Facebook or my own Blog with Flickr
In the above scenario, we used Flickr as the main storage point. However, if you are more active on Facebook or feel like using your own blog to host images, you can do that easily via the awesome Posterous service.
Just associate Facebook, Twitter, Flickr or even your blog with Posterous and now you can publish the same image across any of these sites via a simple email.
For instance, if you need to upload an image to Facebook, send an email to facebook@posterous.com. If you like to upload the same image to Facebook as well as Twitter, address the message to facebook+twitter@posterous.com. It’s that easy.
Flickr or Posterous?
Both Posterous and Flickr are excellent options for uploading images on the web via email but with Posterous, you don’t have to remember any complex email addresses. The other advantage is that Posterous can be integrated with multiple social sites while Flickr works only with Twitter and blogs for the moment.
Send Notes to your Evernote Notebook from Twitter
You can now take notes in Evernote directly from Twitter. Here’s how you set up the link.
First follow @myen on Twitter and this bot will send you a link in a direct message. Click that link to associate your Evernote account with your Twitter username.
To capture a new note into Evernote, simply send a DM to the @myen bot. Alternatively, you can put @myen in any of your tweets and the message (or retweet) will be archived forever into your Evernote Notebooks.
Save Evernote Clips via SMS
If you no big fan of Twitter, you may still want to connect Evernote with Twitter as this associate will help you send notes in Evernote through SMS text messages. You can compose a note on your mobile phone and send it to Twitter using your country specific short code (40404 in US, 5566511 in India)and the note will be saved in Evernote.
The Evernote Blog says that it may take less than a minute for text notes sent via Twitter to show up in your Evernote account. You can also view what people are saving into Evernote through a simple search.
First follow @myen on Twitter and this bot will send you a link in a direct message. Click that link to associate your Evernote account with your Twitter username.
To capture a new note into Evernote, simply send a DM to the @myen bot. Alternatively, you can put @myen in any of your tweets and the message (or retweet) will be archived forever into your Evernote Notebooks.
Save Evernote Clips via SMS
If you no big fan of Twitter, you may still want to connect Evernote with Twitter as this associate will help you send notes in Evernote through SMS text messages. You can compose a note on your mobile phone and send it to Twitter using your country specific short code (40404 in US, 5566511 in India)and the note will be saved in Evernote.
The Evernote Blog says that it may take less than a minute for text notes sent via Twitter to show up in your Evernote account. You can also view what people are saving into Evernote through a simple search.
Who Should You Follow on Twitter?
Are you new to the world of Twitter and have no clue about people whom you should follow on Twitter ? Or are you an old Twitter inhabitant but looking to expand your network of Twitter friends?
If the answer to any of the above is yes, what you really need is Mr Tweet – it’s an intelligent service that scans you existing network and recommends a list people who you should be following.
To get started, simple add the @mrtweet bot to your Twitter list and it will send a direct message with a link to your Twitter report – here’s an example using my own twitter account.
You also get to know about interesting people who are following you on Twitter but you don’t seem to be reciprocating.
Credit goes to Dwight Silverman for introducing me to this new service through, you got that right, Twitter. And do check this twitter guide to learn about some new stuff that you can do on Twitter.
If the answer to any of the above is yes, what you really need is Mr Tweet – it’s an intelligent service that scans you existing network and recommends a list people who you should be following.
To get started, simple add the @mrtweet bot to your Twitter list and it will send a direct message with a link to your Twitter report – here’s an example using my own twitter account.
You also get to know about interesting people who are following you on Twitter but you don’t seem to be reciprocating.
Credit goes to Dwight Silverman for introducing me to this new service through, you got that right, Twitter. And do check this twitter guide to learn about some new stuff that you can do on Twitter.
The Most Popular Twitter Acronyms
Twitter, on account of the 140 character limit, encourages extensive use of shorthand typing. Most of these acronyms might be familiar to regular Internet users but some are very specific to Twitter.
Here is a list of top Twitter acronyms that we know so far.
RT = Retweet.
PRT = Partial Retweet / Please Retweet.
OH = Overheard.
DM = Direct Message.
@ : Reply to [username].
BTW : By The Way
FTW = For The Win.
FTL = For The Loss.
IRL = In Real Life.
FTF = Face to Face.
IMHO = In My Honest Opinion.
YMMV = Your Mileage May Vary.
BR = Best Regards.
b/c = because.
JV = Joint Venture.
LMK = Let Me Know.
Here is a list of top Twitter acronyms that we know so far.
RT = Retweet.
PRT = Partial Retweet / Please Retweet.
OH = Overheard.
DM = Direct Message.
@ : Reply to [username].
BTW : By The Way
FTW = For The Win.
FTL = For The Loss.
IRL = In Real Life.
FTF = Face to Face.
IMHO = In My Honest Opinion.
YMMV = Your Mileage May Vary.
BR = Best Regards.
b/c = because.
JV = Joint Venture.
LMK = Let Me Know.
Most Useful Twitter Services That Can Help Your Business Grow
The concept of Twitter may seem weird at first but there’s lot of value in connecting with people though Twitter.
Businesses now use the Twitter ecosystem to pre-announce new products, get feedback, share upcoming deals or for tracking buzz around their products and services.
For instance, the Dell Outlet uses Twitter to announce deals and discounts on refurbished Dell computers. JetBlue Airways and Southwest Airlines use Twitter to let customers know about new routes and fare discounts. News sites like BBC and The New York Times publish breaking new stories on Twitter thus replacing the traditional email alerts.
If you also own a product or a service, here are some essential tools to help you harness the full power of Twitter without making any dent in your existing marketing budget because these tools are completely free:
1. Twitter Feed - This service fetches new content from your blog (or any site that supports RSS feeds ) and publishes a link in your twitter account. It will help your existing customers stay updated about news related to products they already own.
2. Tweet Scan - This is like Google for Twitter. It will solve two problems:
a) Tweet Scan is great for monitoring feedback about your product from conversations happening in the Twitter universe. And they provide RSS feeds so you’ll automatically know when people tweet about products.
b) With Tweet Scan, you can find existing customers who are already on Twitter and follow them so they come to know about your existence. Or you may search for the name of your competing products and track potential customers.
3. Twitter PollDaddy - This service lets you use Twitter for getting opinions or for asking questions through polls. Type your question with a list of potential answers and post it to your Twitter account.
So if you are nearing a product release and only one of the two features can make it to the final product, use Twitter PollDaddy service to learn from customers which of the two features they think is more important to them.
4. Twitter Response - TwitResponse lets you schedule delivery of your tweets just like the way you send emails in future.
Say if you are announcing a new product at 10 AM EST tomorrow, write a message through TwitResponse and it will automatically get published to your Twitter status exactly at the time you want. You need not be texting at the time of actual launch.
5. Quotably - This is another quintessential twitter service that makes it easy for you to follow conversations happening around your tweets. It arranges replies to all your tweets in a threaded form much like the way you see discussions on usenet groups.
6. TwitterReply - With Twitter, your customers get an alternate way to get in touch with you through public tweets or even direct messages. They may want to know the contact number of your support team or they could be looking for a manual which can they can’t locate on your website.
TwitterReply sends you an instant email whenever there’s a new tweet for you in the Twitter universe. You need it because customers contacting you through Twitter may be looking for instant answers.
Twitter hack: Post to Twitter Using Email
Businesses now use the Twitter ecosystem to pre-announce new products, get feedback, share upcoming deals or for tracking buzz around their products and services.
For instance, the Dell Outlet uses Twitter to announce deals and discounts on refurbished Dell computers. JetBlue Airways and Southwest Airlines use Twitter to let customers know about new routes and fare discounts. News sites like BBC and The New York Times publish breaking new stories on Twitter thus replacing the traditional email alerts.
If you also own a product or a service, here are some essential tools to help you harness the full power of Twitter without making any dent in your existing marketing budget because these tools are completely free:
1. Twitter Feed - This service fetches new content from your blog (or any site that supports RSS feeds ) and publishes a link in your twitter account. It will help your existing customers stay updated about news related to products they already own.
2. Tweet Scan - This is like Google for Twitter. It will solve two problems:
a) Tweet Scan is great for monitoring feedback about your product from conversations happening in the Twitter universe. And they provide RSS feeds so you’ll automatically know when people tweet about products.
b) With Tweet Scan, you can find existing customers who are already on Twitter and follow them so they come to know about your existence. Or you may search for the name of your competing products and track potential customers.
3. Twitter PollDaddy - This service lets you use Twitter for getting opinions or for asking questions through polls. Type your question with a list of potential answers and post it to your Twitter account.
So if you are nearing a product release and only one of the two features can make it to the final product, use Twitter PollDaddy service to learn from customers which of the two features they think is more important to them.
4. Twitter Response - TwitResponse lets you schedule delivery of your tweets just like the way you send emails in future.
Say if you are announcing a new product at 10 AM EST tomorrow, write a message through TwitResponse and it will automatically get published to your Twitter status exactly at the time you want. You need not be texting at the time of actual launch.
5. Quotably - This is another quintessential twitter service that makes it easy for you to follow conversations happening around your tweets. It arranges replies to all your tweets in a threaded form much like the way you see discussions on usenet groups.
6. TwitterReply - With Twitter, your customers get an alternate way to get in touch with you through public tweets or even direct messages. They may want to know the contact number of your support team or they could be looking for a manual which can they can’t locate on your website.
TwitterReply sends you an instant email whenever there’s a new tweet for you in the Twitter universe. You need it because customers contacting you through Twitter may be looking for instant answers.
Twitter hack: Post to Twitter Using Email
How to Remote Control your Windows PC with Email, SMS or Even Twitter
It’s a long weekend and you’re happy because you’ll get to spend the next three days with your family. You left the office in an excited mood but as the cab was approaching home, you suddenly realized that you forgot to shut down the Office PC. Oops!
It’s a sinking feeling because there’re so many confidential documents on the computer and since most of your trusted colleagues have also left for the day, there’s no point calling them for help.
So what do you do? Drive back to Office? Well that’s not required - just take out your cell phone or switch on the laptop at home, send an email (or an SMS or a tweet) and that will instantly lock your Office workstation. And if you share the same computer with multiple people, you can use another email command to remotely log off or even shut down the computer from anywhere in the world.
There’s no magic here, it’s the power of TweetMyPC utility that lets you remote control your computer from a mobile phone or any other Internet connected computer.
It works like this. You first install the free TweetMyPC utility on any Windows PC and associate your Twitter account. The app will silently monitor your Twitter stream every minute for any desktop commands and if it finds one, will act upon it immediately. The initial version of TweetMyPC was limited to basic shutdown and restart commands, however the current v2 has a far more robust set of commands, enabling a far more useful way of getting your PC to carry out certain tasks especially when you’re AFK (Away From Keyboard).
Before we get started, it may be a good thing if you can set up a new twitter account for remote controlling your desktop and also protect the status updates of this account to ensure better security.
Protecting the account means that you prevent other users from reading your tweets which in this case are email commands that you sending to the computer. To protect your Twitter profile, log in to Twitter with the credentials you want to use, click Settings and check the box next to "Protect my Updates".
Let’s get started. Install the TweetMyPC utility of your computer and associate your Twitter and Gmail account with the application. It will use Twitter to receive remote commands (like shutdown, log-off, lock workstation, etc) from while the email account will be used for send your information (e.g., what process are currently running on your computer).
How to Send Commands to the Remote Computer
Now that your basic configuration is done, it’s time to set up a posting method. You can use email, SMS, IM, web or any of the Twitter clients to send commands to the remote computer.
By Email: Associate you Twitter account with Posterous (auto-post) and all email messages sent to twitter@posterous.com will therefore become commands for the remote computer. (Also see: Post to Twitter via Email)
By SMS: If you live in US, UK, Canada, India, Germany, Sweden or New Zeleand, you can send associate Twitter with your mobile phone (see list of numbers) and then control your remote computer via SMS Text Messages.
By IM: Add the Twitter bot - twitter@twitter.com - to your list of Google Talk buddies and you can then send commands via instant message.
By Web:If you are on vacation but have access to an internet connected laptop, just log into the Twitter website and issue commands (e.g., shutdown or logoff) just as another tweet.
Download Files, Capture Remote Screenshots & more..
While the TweetMyPC is pretty good for shutting down a remote computer, it lets you do some more awesome stuff as well.
For instance, you need to download an unfinished presentation from the office computer so that you can work on it at home. Or you want to download a trial copy of Windows 7 on the Office computer while you are at home.
Here’s a partial list of commands that you can use to remote control the PC - they’re case-insensitive and, as discussed above, you can send them to Twitter via email, SMS, IM or the web.
Screenshot : This is one of the most useful command I’ve come across after the shutdown command. Want to know what’s happening within the confines of your PC when you’re not around? Just tweet screenshot and TweetMyPC will take a screenshot of your desktop and post it to the web (see example).
ShutDown, LogOff, Reboot, Lock : The function of these useful commands is pretty obvious from their names.
Standby, Hibernate : Don’t want to shutdown the remote PC? Save power by entering standby mode with this command. Or hibernate your PC with a tweet, thereby saving even more power.
Download : You can download any file from the Internet on to the remote computer using the download command. For instance, a command like download http://bit.ly/tCJ9Y will download the CIA Handbook so you have the document ready when you resume work the next day.
GetFile : The Download command was for downloading files from the Internet onto the remote computer. However, if you like to transfer a file from the remote computer to your current computer, use the GetFile command. It takes the full page of the file that you want to download and will send that you as an email attachment. If you don’t know the file page, use the command GetFileList to get a list of file folders on that drive.
GetProcessList : This is like a remote task manager. You’ll get a list of programs that are currently running on the remote computer along with their process IDs. Send another command kill to terminate any program that you think is suspicious or not required.
Conclusion
TweetMyPC is a must-have utility and you never know when you may need it. And if you have been trying to stay away from Twitter all this time, the app gives you a big reason to at least create one protected account on Twitter.
That said, there’s scope for improvement. For instance, the app will wait for a minute to check for new messages in your Twitter stream so it’s not "instant". The developers can actually increase that limit because the Twitter API now allows upto 100 checks per hour.
And since the app is dependent on Twitter and Gmail, it will not work during those rare fail-whale moments.
It’s a sinking feeling because there’re so many confidential documents on the computer and since most of your trusted colleagues have also left for the day, there’s no point calling them for help.
So what do you do? Drive back to Office? Well that’s not required - just take out your cell phone or switch on the laptop at home, send an email (or an SMS or a tweet) and that will instantly lock your Office workstation. And if you share the same computer with multiple people, you can use another email command to remotely log off or even shut down the computer from anywhere in the world.
There’s no magic here, it’s the power of TweetMyPC utility that lets you remote control your computer from a mobile phone or any other Internet connected computer.
It works like this. You first install the free TweetMyPC utility on any Windows PC and associate your Twitter account. The app will silently monitor your Twitter stream every minute for any desktop commands and if it finds one, will act upon it immediately. The initial version of TweetMyPC was limited to basic shutdown and restart commands, however the current v2 has a far more robust set of commands, enabling a far more useful way of getting your PC to carry out certain tasks especially when you’re AFK (Away From Keyboard).
Before we get started, it may be a good thing if you can set up a new twitter account for remote controlling your desktop and also protect the status updates of this account to ensure better security.
Protecting the account means that you prevent other users from reading your tweets which in this case are email commands that you sending to the computer. To protect your Twitter profile, log in to Twitter with the credentials you want to use, click Settings and check the box next to "Protect my Updates".
Let’s get started. Install the TweetMyPC utility of your computer and associate your Twitter and Gmail account with the application. It will use Twitter to receive remote commands (like shutdown, log-off, lock workstation, etc) from while the email account will be used for send your information (e.g., what process are currently running on your computer).
How to Send Commands to the Remote Computer
Now that your basic configuration is done, it’s time to set up a posting method. You can use email, SMS, IM, web or any of the Twitter clients to send commands to the remote computer.
By Email: Associate you Twitter account with Posterous (auto-post) and all email messages sent to twitter@posterous.com will therefore become commands for the remote computer. (Also see: Post to Twitter via Email)
By SMS: If you live in US, UK, Canada, India, Germany, Sweden or New Zeleand, you can send associate Twitter with your mobile phone (see list of numbers) and then control your remote computer via SMS Text Messages.
By IM: Add the Twitter bot - twitter@twitter.com - to your list of Google Talk buddies and you can then send commands via instant message.
By Web:If you are on vacation but have access to an internet connected laptop, just log into the Twitter website and issue commands (e.g., shutdown or logoff) just as another tweet.
Download Files, Capture Remote Screenshots & more..
While the TweetMyPC is pretty good for shutting down a remote computer, it lets you do some more awesome stuff as well.
For instance, you need to download an unfinished presentation from the office computer so that you can work on it at home. Or you want to download a trial copy of Windows 7 on the Office computer while you are at home.
Here’s a partial list of commands that you can use to remote control the PC - they’re case-insensitive and, as discussed above, you can send them to Twitter via email, SMS, IM or the web.
Screenshot : This is one of the most useful command I’ve come across after the shutdown command. Want to know what’s happening within the confines of your PC when you’re not around? Just tweet screenshot and TweetMyPC will take a screenshot of your desktop and post it to the web (see example).
ShutDown, LogOff, Reboot, Lock : The function of these useful commands is pretty obvious from their names.
Standby, Hibernate : Don’t want to shutdown the remote PC? Save power by entering standby mode with this command. Or hibernate your PC with a tweet, thereby saving even more power.
Download
GetFile
GetProcessList : This is like a remote task manager. You’ll get a list of programs that are currently running on the remote computer along with their process IDs. Send another command kill
Conclusion
TweetMyPC is a must-have utility and you never know when you may need it. And if you have been trying to stay away from Twitter all this time, the app gives you a big reason to at least create one protected account on Twitter.
That said, there’s scope for improvement. For instance, the app will wait for a minute to check for new messages in your Twitter stream so it’s not "instant". The developers can actually increase that limit because the Twitter API now allows upto 100 checks per hour.
And since the app is dependent on Twitter and Gmail, it will not work during those rare fail-whale moments.
Adding persistant static routes in linux
Let's say that you have a box that lives on subnet 172.16.16.0 /24. Your default route is set in /etc/sysconfig/network as 172.16.16.1, as shown below:
NETWORKING=yes
HOSTNAME=testbox.domain.com
GATEWAY=172.16.16.1
Now you need to get to network 1.2.3.0 /24 using gateway 172.16.16.250 and network 45.67.89.0 /24 using gateway 172.16.16.254. One option is to add those routes manually with the following commands:
SYNTAX
# route add [-net|-host] netmask gw dev X
EXAMPLES
route add -net 1.2.3.0 netmask 255.255.255.0 gw 172.16.16.250
route add -net 45.67.89.0 netmask 255.255.255.0 gw 172.16.16.254
This will work in the short term, and can be doublechecked using the 'route' command - sample output shown below:
Destination Gateway Genmask Flags Metric Ref Use Iface
172.16.16.0 * 255.255.255.0 U 0 0 0 eth0
1.2.3.0 172.16.16.250 255.255.255.0 UG 0 0 0 eth0
45.67.89.0 172.16.16.254 255.255.255.0 UG 0 0 0 eth0
default 172.16.16.1 0.0.0.0 UG 0 0 0 eth0
NOTE: once the machine is rebooted, those statis routes will disappear, as they are stored in memory and are not recreated on startup.
To add a persistent static route in Redhat Enterprise Linux or CentOS, create a file called route-X in the /etc/sysconfig/network-scripts/ directory where is the interface number and X is the interface number. As you would expect, these are specified in separate files for each of the available interfaces.
In this particular case, we will be creating a file called 'route-eth0' in /etc/sysconfig/network-scripts in order to make those routes persistent through reboot, and populating it with the information shown below
vi /etc/sysconfig/network-scripts/route-eth0
1.2.3.0/24 via 172.16.16.250
45.67.89.0/24 via 172.16.16.254
Once that file has been modified, run the following command to restart the network:
service network restart
After that, run the route command and make sure that your routes are in place.
NETWORKING=yes
HOSTNAME=testbox.domain.com
GATEWAY=172.16.16.1
Now you need to get to network 1.2.3.0 /24 using gateway 172.16.16.250 and network 45.67.89.0 /24 using gateway 172.16.16.254. One option is to add those routes manually with the following commands:
SYNTAX
# route add [-net|-host] netmask gw dev X
EXAMPLES
route add -net 1.2.3.0 netmask 255.255.255.0 gw 172.16.16.250
route add -net 45.67.89.0 netmask 255.255.255.0 gw 172.16.16.254
This will work in the short term, and can be doublechecked using the 'route' command - sample output shown below:
Destination Gateway Genmask Flags Metric Ref Use Iface
172.16.16.0 * 255.255.255.0 U 0 0 0 eth0
1.2.3.0 172.16.16.250 255.255.255.0 UG 0 0 0 eth0
45.67.89.0 172.16.16.254 255.255.255.0 UG 0 0 0 eth0
default 172.16.16.1 0.0.0.0 UG 0 0 0 eth0
NOTE: once the machine is rebooted, those statis routes will disappear, as they are stored in memory and are not recreated on startup.
To add a persistent static route in Redhat Enterprise Linux or CentOS, create a file called route-X in the /etc/sysconfig/network-scripts/ directory where is the interface number and X is the interface number. As you would expect, these are specified in separate files for each of the available interfaces.
In this particular case, we will be creating a file called 'route-eth0' in /etc/sysconfig/network-scripts in order to make those routes persistent through reboot, and populating it with the information shown below
vi /etc/sysconfig/network-scripts/route-eth0
1.2.3.0/24 via 172.16.16.250
45.67.89.0/24 via 172.16.16.254
Once that file has been modified, run the following command to restart the network:
service network restart
After that, run the route command and make sure that your routes are in place.
How to Capture Screenshots of your Blackberry Screen
1. Capture BlackBerry Screenshots from Command Prompt
Get the free Java Loader Commander utility from BBforums (mirror) and unzip the file to some folder on your hard drive. Now connect the BlackBerry device to your computer via the USB cable and navigate to the screen that you want to save as an image. Open the command prompt and switch to the folder that contains the extracted files. Type JL_Cmder.cmd and press enter. Just follow the simple wizard to save screenshots of your BlackBerry screen.
2. Take Screenshots with BB Screenshooter
The official RIM command line utility discussed above can be a bit intimidating for non-techies so here’s a standard GUI based application for capturing screenshots of BlackBerry. The utility is called BBScreenshooter and it lets you take captures in multiple image formats from your Windows desktop. You can even preview screenshots before shooting. To use BB Screeenshoter, first download the JavaLoader tool and unzip it to a folder. Then download the BBscreenshoter.exe file in the same folder and run. Specify the location of Java Loader utility and the application is now ready to take pictures of your BlackBerry screen.
3. Wireless Screen Captures for BlackBerry (Quick and Easy)
The downside with either of the above solutions is that they both are desktop based so you first need to connect the BlackBerry phone to the computer before taking screen captures. Now in situations where you want to grab the BlackBerry screen while you’re miles away from the computer, CaptureIt will come very handy. Open m.thetechmogul.com in your BlackBerry browser and install the CaptureIt application (mirror). This will add a "Capture It" option to your BlackBerry menu - you can select that option, wait until the vibration is over and an image of your current BlackBerry screen will get saved either in the external memory card or to the device memory. Alternatively, you can go to Home - Options - Screen Keyboard and assign a convenience key to the Capture It application. Then you’ll be able to capture screenshots with a simple click without having to use the menu option.
Monday, August 3, 2009
Convert an MP3 File to WAV Format in Linux
How do I convert an MP3 file to WAV format under Linux using a shell prompt?
There are plenty of tools that to convert an MP3 file into WAV format. I recommend mpg321 which is a free command-line mp3 player, which uses the mad audio decoding library.
OR
I recommend using mpg123 as it is updated frequently.
OR
Use it as follows:
There are plenty of tools that to convert an MP3 file into WAV format. I recommend mpg321 which is a free command-line mp3 player, which uses the mad audio decoding library.
Install mpg321 or mpg123
Type the following command under Debian / Ubuntu Linux, enter:sudo apt-get install mpg321
OR
sudo apt-get install mpg123
I recommend using mpg123 as it is updated frequently.
Install mpg123 under CentOS / RHEL / Fedora Linux
Turn on rpmforge repo and type the following command:yum install mpg123Convert an MP3 to WAV
The -w option will convert an .mp3 file to .wav file. The syntax is:mpg123 -w output.wav input.mp3OR
mpg321 -w output.wav input.mp3A Sample Shell Script Helper Function
Add the following to your ~/.bashrc startup file (tested with bash v3.x+):mp3towav(){ [[ $# -eq 0 ]] && { echo "mp3wav mp3file"; exit 1; } for i in "$@" do # create .wav file name local out="${i%/*}.wav" [[ -f "$i" ]] && { echo -n "Processing ${i}..."; mpg123 -w "${out}" "$i" &>/dev/null && echo "done." || echo "failed."; } done }
Use it as follows:
mp3towav *.mp3 mp3towav "this is a test.mp3" ls *.wav
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