The - option in the more command is used to specify that the command should read from standard input (stdin) instead of a file. This allows you to pipe the output of another command into more.
For example, you can use it like this:
cat largefile.txt | more -In this case, cat largefile.txt outputs the contents of largefile.txt, and the more - command takes that output and displays it one screenful at a time. This is useful for viewing the output of commands that generate a lot of text.
