`tee` for commands

tee can redirect the piped standard input into the standard output **and** file. echo Hello, World! | tee greeting.txt The command above would display the greeting on the terminal screen and save it in the contents of greeting.txt file, creating the file if there's none by that name. There's also -a switch for tee to append to the existing file instead of overwriting. --- Is there a convenient way to redirect the piped input to the command and **standard output** instead of file? I am trying to create a wrapper script for [buku](https://github.com/jarun/Buku) to copy to primary selection the URL of the bookmark specified by its index number. # bukuc: #!/bin/sh url=$(buku -f 1 -p $1 | cut -f 2) # NUMBER : URL echo $url # DISPLAY echo $url | xsel # PRIMARY SELECTION Here I use echo **two** times, first for displaying on the terminal, and then saving in the primary selection (clipboard). I imagine something of echo $url | teeC xsel or a shortcut to display the output before passing to the next command (chaining commands), what would allow me to chain the whole command in one line without the need to save the result in a **variable** as follows: buku -f 1 -p $1 | cut -f 2 | teeC xsel --- I can also use it with [urlview](https://github.com/sigpipe/urlview) to view, select, and open with the $BROWSER as follows: bukuc 10-20 | urlview