Questions tagged [ncurses]
a programming library used for providing a text-based user interface
120
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Python 3 BBS lister
I have the following script. Which works perfectly fine with telnet (or even ztelnet), the problem is that it does not allow me to answer all of the questions with another term. Other than telnet or ...
- 389
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0
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78
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Run GDB on background
I'm working on a program where I have 2 ncurses window, one displaying my custom shell implemented with fork+exec and on the other I want show some info about command ran on my shell. For that, I'm ...
2
votes
1
answer
218
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How to generate a termcap string from a compiled terminfo file?
The thread's title pretty much says it all.
When I googled this question, I found mentions of a program called untic that supposedly does what I want to do, but this program does not seem to be ...
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55
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"unknown frontend: ncurses" when starting lem editor
I'm trying to install lem editor.
I installed roswell.
Then I tried to install lem using below
$ ros install follow-dependency=t lem-project/lem
'follow-dependency=t' is not a valid target for '...
-2
votes
1
answer
93
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Dnf not working after deleting libraries
I am using Fedora 37 and have Linux kernel: 6.1.7-200.fc37.x86_64.
While trying to replace some libraries (libncurses.so.5) for STMCubeIDE I have deleted some files in /usr/lib/libncurses*. Now, when ...
2
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1
answer
149
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TERM=fbterm causes box-drawing characters (by curses) get scrambled
I'm writing TUI software on fbterm using python-curses library.
To get full color in fbterm, I read it's man page and concluded I need to change environmental variable TERM to fbterm.
Man page: By ...
- 500
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0
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30
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ninja IRC client
I'm having a problem when compiling ninja IRC client. (http://ftp.iij.ad.jp/pub/linux/gentoo/distfiles/5b/ninja-1.5.9pre14.tar.gz)
It compiles fine, but segfaults upon executing. When strace'ing the ...
- 389
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1
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165
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Ask a terminal whether a glyph is defined by a font vs. directly in its own source code?
Many modern terminal emulators include definitions for box drawing glyphs directly in their own source code, and disregard the versions provided by the font when rendering the display. Is there a ...
16
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2
answers
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How do interactive CLIs work?
How do command-line applications like Vim work? Specifically, how do they take control of the terminal in the manner they do? Also, for future reference, is there a specific term for applications that ...
- 163
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is there a list of minimum term capabilities for dialog(ncurses)?
I'm trying to write some code using the ncurses dialog library (available everywhere, source mirror is here) and I'm trying to decide dynamically in code whether to use dialog or just print to stderr ...
- 19
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3
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316
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Running process in background ruins terminal
I have this makefile:
all:
sudo watch "ls -l" > /dev/null &
@echo line 1
@echo line 2
@echo line 3
@echo line 4
Running watch (or any other ...
- 709
1
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1
answer
510
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Get output of a command that uses curses
If I try to get the output (stdout) of a python program into a variable I do this:
set zpath (python something.py "$argv")
But if the program spawns a curses interface, it won't show.
The ...
- 188
1
vote
2
answers
640
views
How can I get the dimensions of the current font in a terminal?
I am working on an ncurses application that creates some very blocky graphics using alphanum characters. I'd like to be able to detect the dimensions (specifically the aspect ratio) of the font glyphs ...
- 11
1
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1
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394
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How do I redirect the output of Python curses to a different display?
If the Python curses library takes control of the display, how do I specify which display (amongst multiple GNU screens) it should display to? So that I could code with curses in a live Python shell, ...
- 143
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1
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145
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Is there an embedded, artificial screen environment in the terminal to test out curses programming?
I’d like to create a second, artificial screen where I can send the output of my curses commands so that if something doesn’t work I’m not stuck inside a display I can’t get out of.
I am using the ...
- 143
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1
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395
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How to calculate TTY-console size (how many characters) with given to display resolution (e.g. 480x320) and given font size (e.g. 14,15 or 16)?
I don't have this 3.5" display yet, so I couldn't just test it with tput cols and tput lines. I'd like to know how many characters fit in both axes, before I develop a software with curses.
- 500
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A decent text-user-interface stopwatch?
I'm looking for something like this:
but preferably
TUI (ncurses-based),
with support for multiple stopwatches (and giving names to them)
able to survive being closed and re-opened (a stopwatch only ...
- 123
0
votes
1
answer
306
views
emacs ./configure encounters missing function 'tputs' when cross-compiling for arm-linux-gnueabihf
I'm trying to cross compile Emacs for an armv7l system on my main rig through an Arch virtual-box, and so far I've had no issues until the ./configure stage. I've properly set up the build, host, and ...
- 1
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1
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617
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ncurses applications not working in iTerm2
I cannot get commandline tools that use ncurses to work in iTerm2. They either fail or fall-back to some other UI if they have it (e.g. text only).
Example for VLC (installed via Homebrew):
% /...
- 101
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1
answer
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TERM=tmux-256color causes "Error opening terminal"
I want to enable italics in tmux (inside iTerm2 on macOS Big Sur 11.3). I have achieved this by setting this in .tmux.conf
set -g default-terminal "tmux-256color"
And I have installed ...
- 387
1
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1
answer
72
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Is there actually a "pad(3NCURSES)" manual page?
In the man page for ncurses(3X), we read:
Special windows called pads may also be manipulated. These are windows which are not
constrained to the size of the screen and whose contents need not be ...
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1
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284
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cli real-time monitoring of web server traffic per second over time (ncurses)
Is there a tool that can be used to monitor the traffic a web server is processing in real-time from the command line?
I'm looking for a cli ncurses tool like nload, but one that can show the requests ...
- 172
2
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1
answer
2k
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Strange error with GnuPG: claims "no secret key" when terminal is too small
This is the content of my .gnupg/gpg-agent.conf:
pinentry-program /usr/bin/pinentry-curses
When I try to retrieve a password from pass' store, e.g. via pass -c path/to/password in a very small-sized ...
- 1,471
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0
answers
191
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How to grep on a ncurses display (refreshed every second)?
When running the useful tool tcptrack in the terminal (over SSH), it displays this:
Client Server State Idle A Speed
1.2.3.4:44054 5.5.5.5:443 ...
- 2,361
1
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0
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163
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Interpret bash escape sequences and other characters using ncurses
I want to design a terminal multiplexer like tmux, but not that complex, something minimal, that works remote, using ncurses.
On the server side, the workflow is as follows:
The server process ...
- 11
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0
answers
33
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Tool for human interpretation of XTerm escape sequences? [duplicate]
Basically, I want a tool to interpret the raw output of commands that output ANSI color codes, terminal reset codes, etc. in the Linux/Unix/macOS terminal. Something based on https://invisible-island....
- 103
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1
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181
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libcurses based audio visualization
I would like to use a small terminal window to view the histogram of amplitude vs frequency of the current audio output master mix e.g.
Or (much more) like htop's colored bar graphs.
- 2,967
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3
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554
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How to handle applications that used outdated shared libraries?
I'm trying to run GDB on a rolling release version of Linux that is looking for libncurses.so.5, but the system has version 6 installed. I've seen solutions where people use ln to link libncurses.so.5 ...
- 5
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2
answers
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In this \033[01;32m VT100 style ANSI Escape Sequences what is the 01; and the m?
This came from ~/.bashrc
PS1='${debian_chroot:+($debian_chroot)}\[\033[01;32m\]\u@\h\[\033[00m\]:\[\033[01;34m\]\w\[\033[00m\]\$ '
Notice the \033[01;32m
I know \033[ is a Control Sequence ...
1
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1
answer
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NCURSES SW runs in lxterminal, but doesn't run in a native Linux terminal [closed]
I wrote a "complex" C program using the ncurses library. It "correctly" runs in a lxterminal or gnome-terminal session; but doesn't run in a "native Linux terminal" session without X started (obtained ...
- 240
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401
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zsh colors get messed up when exiting some programs or resizing window
I face this issue with some programs that take over the full terminal, like ncmpcpp, weechat, cava, pipes.sh, and nvtop. If I resize the window after loading these programs, the color scheme changes ...
- 103
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1
answer
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The deciphering of ncurses escape sequences
Help me to decipher the escape sequences created by ncurses library and catched by strace. I am exploring how ncurses interacts with terminal and want to understand its "handshake protocol". I have ...
- 4,033
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1
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118
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Odd behavior of ncurses depending of TERM value
I am trying to understand the following issue. Consider the following ncurses program:
#include <curses.h>
int main() {
initscr(); noecho(); printw("0000000"); getch();
}
Compilation is:
$ ...
- 2,718
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1
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73
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Cannot install calcurse on RHEL8
I am unable to install calcurse on RHEL8.1. The error is that the ./configure file in the tarball does not recognize ncurses as installed:
# git clone https://github.com/lfos/calcurse
# cd calcurse
# ...
2
votes
1
answer
2k
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How to interact with a terminfo database in C without ncurses?
I've been trying to find information for a few days now. To be clear my goal is to create an ncurses-like C library. I'm fully aware of ANSI escape sequence and how to use them. However I want ...
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2
answers
56
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Trouble compiling ncurses 5 on SLES 2011
To my chagrin, I am working as a non-root user on an SLES (SUSE Linux Enterprise) 11. I'm not root and cannot have packages installed.
I'm trying to build ncurses-5.9. The build configures and make ...
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1
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63
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How do I generate a particular (named) escape sequence for the current terminal?
I recently saw a trick that let you sort of "generically" output terminal control codes (based on the current termcap/terminfo settings), but can't find it back. If I remember correctly it let you do ...
- 174
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0
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490
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Linux mint | methods are missing from ncurses
I lately installed a linux mint distribution for development...
Later on i installed curses, ncurses and ncursesw by using following commands...
sudo apt-get install libncurses-dev
sudo apt-get ...
- 101
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1
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135
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piping /dev/tty to ipython without losing formatting or tab completion
I want to insert code into the beginning of an ipython session, and then use ipython interactively.
Let's say I run cat <(echo 'import itertools') /dev/tty | ipython. I get an interactive iPython ...
- 135
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votes
1
answer
240
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Force Bash to use 8 colors
I made some animations and a game that are to be played in the terminal and they rely on the terminal only having 8 colors available. When I run them on a Terminal that has 16 colors available (...
- 141
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0
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_curses.error: setupterm: could not find terminal
A lot of people have been getting the following error message when using curses in python:
Traceback (most recent call last):
File "/home/bertil/anaconda3/bin/vd", line 152, in <module>
...
0
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0
answers
267
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CLI or ncurses tool for browsing local network?
I have a console-only SSH-based pivot box inside a remote location. I want a console or ncurses-based tool that shows me active real-time information on which hosts are up. IP, hostname, etc. ...
- 347
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2
answers
1k
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Cannot display 8-bit characters in xterm in ubuntu 18.04
I have tried every method I could find in the forums, and cannot display any 8-bit character in an xterm window, under kubuntu 18.04 (nor in earlier versions). All characters in range 0x20-0x7e ...
0
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1
answer
156
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Exit alternate screen after crashed ssh-tmux session
After I get disconnected from my tmux session over ssh (I have to use the ssh ~. command to exit), the mouse start displaying control characters like 80;31M65;80;31M65; when I click or turn the wheel.
...
- 101
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2
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7k
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Command-line diff tool
So we all have the diff command installed by default. I certainly don't know how to use it well. But I would expect some reasonable default usage. But when I type diff file1 file2 I get ... a text ... ...
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1
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744
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What happens if terminal is resized in ncurses `doupdate`?
The doupdate function in ncurses will try to update screen size if necessary:
ncurses/tty/tty_update.c:
if ((SP_PARM->_endwin == ewSuspend)
|| _nc_handle_sigwinch(SP_PARM)) {
/*
* This is a ...
- 4,174
2
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1
answer
1k
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Resize window in multi-thread ncurses program
The overall question is simple:
How to gracefully resize a window in a multi-thread ncurses program?
Details here. I have read a few relevant questions (1, 2, 3). From my understanding, there are ...
- 4,174
4
votes
1
answer
1k
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pipe into a curses program
The library ncurses provides an interactive user interface. However, I was wondering what would happen if you pipe something into the program. So i tried like this:
# echo foo | my_curses_prog
It ...
- 4,174
4
votes
1
answer
1k
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Touchscreen for ncurses, beyond mouse?
Does ncurses have any support for touch screen computers? Will a touch screen trigger the same events in ncurses that a mouse does? For example, does tapping on a touch screen produce a "mouse click" ...
- 5,471
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1
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947
views
Failed "make menuconfig" [closed]
Until now I was able to run make menuconfig successfully. I tried to install cmake packages and thereafter I get,
make menuconfig:
make[1]: Entering directory '/home/dullollis/esp/esp-idf/tools/...
