xAppSoftware Blog

Yesterday I had to select some raws (1, 5, 9, ….) from a text file.

This has been a hard job because I was trying to solve the wrong problem……

Really, before coding you should analyze deeply your problem and then you should think which tool you need to use.

However, come on and see my experiments:

First of all we need a test file, I'll use the following:

Often I use tar files downloaded from the internet, sometimes these files don't include a directory containing all other files and directories, so it's very tedious removing all files generated by the extraction, but I can use the following command to remove all the files generated: