How does -n option work?

The -n option is used in various commands to specify a number, and its behavior can vary depending on the command it is used with. Here are a couple of common usages:

1. tail Command:

   • When used with tail, the -n option specifies the number of lines to display from the end of a file. For example, tail -n 5 filename.txt will show the last 5 lines of filename.txt.

2. xargs Command:

   • In the context of xargs, the -n option specifies the maximum number of arguments to be passed to the command being executed. For example, echo "file1 file2 file3" | xargs -n 1 rm will remove one file at a time.

The specific implementation and effect of the -n option can vary, so it's important to refer to the documentation of the command you are using for precise details.