4 Interview rounds in total.

First one with the recruiter, where I was told my chances.

To my surprise, there was a second interview with one engineer that explored some of my skills.

Third interview was an in-depth interview with 2 engineers (should have been 3), which I seem to have failed. I was told the reason was that I lack experience with a few specific technologies (which is true). It was very obvious from my Resume though, so I'm not sure why there was time wasted on both sides.

The recruiter always tried to be transparent and replied quickly, even at uncommon times (9pm, Sunday, etc.).

How does the bash shell execute the ls command?