Here’s a little recipe for printing a “call-stack” for Bash scripts. A call-stack is normally the list of nested function calls. This recipe will utilize the BASH_SOURCE, BASH_LINENO, and FUNCNAME environment variables, set by Bash during script executions, to display a call-stack of one script to another, excluding function calls; this will show only the invocations of one script to another. Read the rest of this entry »
In Rust, the most common way to parse command-line parameters is by using the std::env::args function, which returns an iterator over the command-line arguments passed to the program. Read the rest of this entry »
Here is a simple Web 1.5 (static HTML with a little bit of styling and JavaScript) recipe to allow a viewer of your web page to see the PHP source-code, behind it, with a minimal amount of JavaScript and a little CSS manipulation—good for showing the work you’ve done to others. Or for embedding in your own source, in debug mode, so that teammates can see each others’ work.
See the example code at: http://cachecrew.com/sample_code/highlight_file.php and http://cachecrew.com//sample_code/highlight_file2.php.
It is surprising how quickly we forget how to use scripts we had written, let alone, what they were for. So it is even more difficult for others to know how and whether to use your script. You can avoid wasting the efforts you put into the problems you solved with your script by simply adding some friendly “help” output.
Here is some basic information you should include: