CODEWITHSUNDEEP
bashshellsh
Kut_tyno
Kut_tyno

Reputation: 1

How to set a line at the bottom of the window and don't print carrige return when using "read value"?

I'm working on a little bash chat. So I would like to have at the bottom of the window, a line where the user can input his message. When he press "enter" the message is sent and print right above the last line. This line must'n move ! like this

User A sent: xxxx
User B sent: xxxx
User C sent: xxxx
User A sent: xxxx
User B sent: xxxx
Write your message here : YYYY  *hit enter*
================================================
User A sent: xxxx
User B sent: xxxx
User C sent: xxxx
User A sent: xxxx
User B sent: xxxx
You: YYYY
Write your message here :

I use read userinput to get the input but a line break appears when he presses "enter" to send his message.

So I tried this:

echo -e "\033[2A"; #cursor up 2 lines; echo -en "\r$i"; #remove carriage returns;

I wrote "Hello" and "Bye" here's what's going on ! I don't know how to solve the problem. Somebody's got a solution ? Thanks

Helloge: Hello
Byesage: Bye
message:

Upvotes: 0

Views: 157

Answers (2)

Kut_tyno
Kut_tyno

Reputation: 1

I looked up the slider movements and I changed your code a little bit and got what I wanted.

while true; do
echo -e "message: \c"
read usermess
echo -e "\033[1A\033[1D====>  Your message: $usermess"
done

Output:

====>  Your message: Hello
====>  Your message: Hey
message: Welcome

Thank you for your feedback

Upvotes: 0

Chinoman10
Chinoman10

Reputation: 48

I advise you take a look into Cursor Movement . What you need is to move the cursor to the right \033[9C like so:

echo -e "\033[2A\033[9C$var_with_text_here"

If this isn't really what you need, then please explain better and I'll edit my answer :)

Example:

[user@host ~]$ echo "Message: bla"
Message: Hello
[user@host ~]$ echo -e "\033[2A\033[9CHello"

Upvotes: 1

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