Runs three echo commands, but one happens to echo "date" > c.sh. This appends the word " date" to the script itself. When we display the script afterwards, we can confirm that it has modified itself: :~$ cat c.sh The script had appended the " date" command to itself, so at the end, it displayed the current date and time, even though that was not in the original script. When vim (or sed, or many other editors) edit a file, they actually save a new file and delete the original. This can be confirmed by checking the inode of a file as you edit it. (use ls -il a.sh to check the inode of a.sh). So the effect here is the same as in Test One above: The original script continues exactly as before. Test Five: Copy a new file over the existing file But to any other process, the script has been modified. It enables you to create stand alone, reliable products, with integrated or downloadable components, in short time, little effort and high compatibility installers.It turns out that once the current command has completed, Bash looks for the next character in the file to read.įor this test, I created another script, b.sh which is very simple, but easy to see where in its execution it is up to: This was actually the thing I was interested in when I started this investigation. ConclusionīitRock InstallBuilder is a useful instrument for software developers, offering support for both desktop destined applications or server related programs. ![]() ![]() The products created with BitRock InstallBuilder are cross-platform stand alone installers that are stand alone, native executable files and do not depend on other external processes. An action log is being displayed at the same time, that allows you to monitor every task performed by the application as step-by-step. The program also acts as a debugging instrument, in order to detect installing or development issues. You can use this function to point out troubleshooting areas. Moreover, the application allows you to perform a test run of the installer in order to spot errors before your product reaches the user. Development and testingīitRock InstallBuilder supports both command line interface as well as GUI, and supports source control integrating, development and customizing for XML-based project files, by using external scripts. NET Framework, Java, or Windows specific parameters. The software is is capable to recognize your project’s need for specific runtime environments such as. ![]() In both cases, BitRock InstallBuilder can automatically add necessary elements for the installer’s functionality. Your installer may include automatically generated intuitive GUI or it can derive from an edited XML-based project file. You can include an automatic update feature that delivers update news straight to the users. The application offers you the means to quickly and easily create professional installers that can run on multiple platforms or RPM and Debian packages, along with installing CD/DVDs. All you need is to develop your project and let the application create an installer suitable for your desired environment. BitRock InstallBuilder is a native and cross-platform installers builder that offers advanced tools for creating and testing dynamic installing wizards.
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