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The Bash Debugger Project (bashdb) lets you set breakpoints, inspect variables, perform a backtrace, and step through a bash script line by line. In other words, it provides the features you expect in a C/C++ debugger to anyone programming a bash script.
When working with regular expressions in a shell script the norm is to use grep or sed or some other external command/program. Since version 3 of bash (released in 2004) there is another option: bash's built-in regular expression comparison operator "=~".
How to use a Bash Shell script to record the activity of users. This
script is useful in rebuilding the actions of users as they work at
the command line.
Although Picasa is now available on GNU/Linux, it is still proprietary and, as such, unethical. One year ago, I wrote a simple Bash script that handles a very rapid download of entire PicasaWeb albums/galleries. During the last weeks, Google changed twice the format of the related Web pages and my script could not fetch any picture.
What if we could use a bash script to use "apt-get" with Axel (a command line application which accelerates HTTP/FTP downloads by using multiple sources for one file) so the "apt-get" download speed would increase dramatically? Well, you can, thanks to Matt Parnell who has created a bash script which does just that.
