The script uses “for I” as in a lowercase L (not to be confused with i or I), meaning to cat the servers text file and return one-by-one each host name to use to conduct the commands following ...

It loops as many times as there are pieces of text listed as arguments (in this case 1, 2, 3 and 4). We could just as easily loop through the words “cats are very smart” as the numbers 1, 2, 3 ...

This article will introduce the concept of playing a file line by line in Linux with the help of examples and best user tips. We'll walk you through some of the most common errors made when reading a ...