Imagine you have a file with multiple columns and you need to quickly get the total of a column in command line in UNIX. The easiest way is to use AWK in the command line. Let’s take the following file: 1 2 3 4 5 6 7 8 9 2 Read more…
I am a big fan of beautiful code, not only in terms of quality of programming but also formatting the code nicely so that it is easy on eyes. If you are using a full-blown IDE, they come with their own formatting facility, but if you are using a multipurpose Read more…
If you’ve ever had to deal with PCL (Printer Command Language), you’ll know the pain: there’s no command to center text. Some printers support HPGL commands embedded in a PCL file, but not all. If you’re printing predefined text, you can work out measurements and use absolute positioning. Easy enough. Read more…