Clear the entire console EXCEPT the current line with the "clear" command

The need to clear terminal but save the current line with the command. In the script! (The script is called by the command. It is necessary to clear the entire terminal BEFORE this command, which calls the script.) Restoring a command from history is not suitable

Expected usage example:

1. A script is being created "test.sh "
2. We write some modified "clear" command into it:

   #!/usr/bin/env bash
   clear
   echo some text
   

3. Apply

Current terminal state:

Current result after run 'test.sh':

What is the problem? The fact that the line with the command has disappeared + vscode does not display the left checkmark with the script error code.

Expected result:

How to do it?

P.S.:

The problem is not only in vscode, in other terminals the command is also completely erased

One way

If you need a real prompt, you can use some cursor manipulation like this:

#!/bin/bash

# Save cursor position
printf '\033[s'
# Move the cursor up 1 line
printf '\033[1A'
# Clear the screen
printf '\033[1J'
# Restore cursor position
printf '\033[u'


echo "new thing"

If the above example needs more tweaking, please see for example ANSI escape sequences:Cursor Movement and also ANSI Escape Sequences for more of those.

Another way

You can still use clear if you want to, and then redraw your prompt afterwards like this:

#!/bin/bash

# Clear the screen
clear
# Build the prompt as it was before "clear"
line="$(printf '%s' "$USER@$HOSTNAME:$PWD$ $0")"
# For "root" prompt i.e. "#", comment out the above line and uncomment the below line
# line="$(printf '%s' "$USER@$HOSTNAME:$PWD# $0")"
# Print the prompt
echo "${line/\/home\/$USER/\~}"


echo "new thing"

Or even like this:

#!/bin/bash    

clear
line="$USER@$HOSTNAME:$PWD$ "
read -t 0.01 -ei "$(echo "$0")" -p "${line/\/home\/$USER/\~}"
echo


echo "new thing"

Appearances are deceiving, but appearances might be what you want ... It's not a real prompt though.

Your question is not very clear (which ironically is the command you want to use), but I'll try to answer anyway.

It is my understanding that you call a script with a command (let's say it's called ./myscript), and want to clear the screen before the script is run.

You can do this in 2 ways.

1. Clear the screen and then run the script:

   $ clear; ./myscript
   

2. Have the clear command as the first line in your script:

    #!/bin/bash
    # Beginning of ./myscript
    clear
   
    # The rest of the script goes here
   

   And then just run the script, which will clear the screen, and then proceed to do other things:

    $ ./myscript
   

Finally, if you want to create an alias that clears the screen, and then reruns the last command, you can define:

alias clrun='clear; $(fc -ln -1)'

Then running clrun will do exactly this: Clear the screen and then rerun the previous command.

If this doesn't answer your question, you have to be much more precise in what you want.