Clear the screen before each command

[adarsh]

Reason for Change

• After looking through my shell history, I noticed I clear the screen a great deal to not confuse myself.
• I rarely need to look at the output from two subsequent commands at the same time.

  Changes

• Add a preexec function which runs clear "just after a command has been read and is about to be executed." From the man page:

If the history mechanism is active (regardless of whether the line was discarded from the history buffer), the string that the user typed is passed as the first argument, otherwise it is an empty string. The actual command that will be executed (including expanded aliases) is passed in two different forms: the second argument is a single-line, size-limited version of the command (with things like function bodies elided); the third argument contains the full text that is being executed.

http://zsh.sourceforge.net/Doc/Release/Functions.html

[edwardloveall]

Out of curiosity, if you're using Terminal.app or iTerm, do you not even want the overhead of clearing the screen with ⌘K?

[captbaritone]

You've gone mad!! I'll be curious to see if this works for you long term. If so, :clap:

[adarsh]

@edwardloveall I'm on iTerm2 and Command-K will clear the whole screen, which includes all of my tmux splits:

Before:

After:

But yeah, I don't want the overhead of another keystroke.

[adarsh]

@captbaritone Maybe! Although I already love it. The rare examples where I need the history, I can scroll back in a tmux pane.