I need to clear terminal fully, so the full terminal become darkfull.
What I mean by "fully", I need to username@machine$: not to pop up so terminal after clear would be completely empty. Just like cmatrix does before drawing digital rain.
1 Answer
The command prompt format is stored in the PS1 environment variable. If you set it to the empty string, no command prompt will be displayed. You can then clear the console:
user@host:$ PS1=
clear
If you need to restore it afterwards, you can save the initial value in a different variable first:
user@host:$ PS1_INITIAL=$PS1 # store the initial value
user@host:$ PS1=
PS1=$PS1_INITIAL # restore the initial value
user@host:$
Or you can source .bashrc where the original values are defined:
. ~/.bashrc
user@host:$
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That looks pretty much like an answer, but how can i exit that mode? Jan 19, 2019 at 9:37
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Allright, I've understood, if i want to exit that mode i have to save command prompt in another variable and restore it. Thanks. Jan 19, 2019 at 9:43
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Close the terminal.
PS1=will only set the environment variable in that specific terminal. Or set it back to the default value which you can see by runningecho $PS1in a different terminal (one that shows the default prompt).– danzelJan 19, 2019 at 9:43 -
@V.Dalechin It's not a mode.
PS1prompt is the text shown before the cursor. You never entered a mode. After a commandclearis issued you still can type in commands, butPS1is set to empty empty string. All you have to do is setPS1to something again. Jan 19, 2019 at 9:43 -
username@machine$:never show on screen ? Can you clarify your question a little ?cmatrixpackage, i need the same realization as they clear screen before drawing digital rain.resetcommand ?cmatrix, however, usesncurseslibrary, so it doesn't just clear the screen. It opens completely different text interface.username@machine$: