Sunday, March 31, 2013

Storing passwords in PuTTY

How to save SSH username/password for auto login in PuTTy

The answer is you can't do it...at least in plain PuTTy. However there is an awesome fork with that let's you store the username and password and other additional features called KiTTy.



So grab yourself a copy and +1 this if you do, thanks.

Tuesday, March 26, 2013

Eclipse Auto Refresh Browser on Save

Automatically refresh the browser window when saving a file in Eclipse IDE

All of my Django webdesign (yes SEOing there) work is done in the excellent and plugin rich Eclipse IDE on a Windows machine. The edit/preview workflow pattern is make some change, save the files (CTR+S), swtich to browser (ALT+Tab), refresh the windows (F5), switch back to Eclipse IDE (ALT+Tab) and rinse and repeat. Even though I can do this quickly it is repetitive and cumbersome and the seconds it takes turn into minutes and hours wasted over many projects.

Googling you will find posts that show how to automate the Alt+Tab F5 Alt+Tab sequence using VBScript and setting it as an automatic builder in Eclipse.


Now this is a good enough solution and it does work very well except that it does not work with all browsers. Google Chrome being one of them where the SendKeys seem to be ignored. However using an alternative utility NirCmd I was able to make it work as follows:
  • Download NirCmd and extract 'nircmd.exe' somewhere into your project (its KISS this way).
  • Create the following 'nircmd-chrome-focus+f5.bat' batch file somewhere in your project:

    ECHO Off
    REM This little batch files calls the awesome nircmd utility to focus Chrome window send an F5 and swtich
    REM back to Eclipse. This is no longer possible with VBScript in WIN7 as Chrome can only be focused but won't 
    REM accept key sends unless a click is made. Seriously donate to the NirSoft for making this tool. 
    
    %~dp0nircmd.exe win activate ititle "- Google Chrome"
    %~dp0nircmd.exe win max ititle "- Google Chrome"
    %~dp0nircmd.exe sendkey f5 press
    %~dp0nircmd.exe win activate ititle "- Eclipse"
    %~dp0nircmd.exe win max ititle "- Eclipse" 
    
    
  • Add the batch file as a project builder 'Project > Properties > Builder > New' and ensure 'Project > Build Automatically' and 'Build Options' > 'During auto builds' is selected; see above screenshot for an idea. 
Feel free to comment or share this if it has hepled you, also consider donating to NirSoft and check out some of their other utilities.

Friday, March 15, 2013

/bin/bash^M: bad interpreter Error

Eclipse file saving and /bin/bash^M: bad interpreter

The source of the error is having a bash file saved with line delimiter in Windows style rather the Unix format. To fix this you can use the 'dos2unix' linux utiltiy:

$> aptitude install dos2unix
The following NEW packages will be installed:
  dos2unix 
0 packages upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
                                         
$> dos2unix <file_to_fix>.sh 
dos2unix: converting file <file_to_fix>.sh to UNIX format ...

Eclipse new line delimter setting

But this post is about setting the Eclipse IDE to save in the Unix format, so let's get to it.

To do so, right click on the 'project' in your navigation pane, select 'properties', and under the 'Resource' tab ensure to specify the 'New text file line delimiter' is set to Unix as shown above; while you at it select the same encoding as on your server which most likley is UTF-8.

If you have 'Preferences > General > Editors > Text Editors > Show whitespace characters' enabled then you will be able to notice the encoding at a glance.

Do plus +1, comment, or share this if it helped you.