Add Skip Paging If Output Fits On Screen With Less as a unix til

unix/skip-paging-if-output-fits-on-screen-with-less.md

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+# Skip Paging If Output Fits On Screen With Less
+
+The `less` command can be used to display a file or the output of a command. It
+is sometimes referred to as a pager because it paginates text that won't fit
+onto a single screen.
+
+```bash
+$ ls | less
+```
+
+This will list the files for the current directory with `less`.
+
+By default it will even display a small amount of text output within the pager.
+If you want `less` to output text that fits onto a single screen directly to
+the terminal, you can pass the `-F` and `-X` flags.
+
+```bash
+$ ls | less -FX
+```
+
+The `-F` flag tells `less` to exit if the output fits onto a single screen. The
+`-X` tells `less` to skip screen clearing.
+
+This is handy if you want the output of a command to show up in your shell
+history.
+
+See `man less` for more details.