Software :: Some Line Drawing Characters And Other Symbols Appear As Diamonds In Terminals (ttys)?
Sep 26, 2010
On my terminal only system ( no Xorg or guis ) I have a font rendering issue. In place of some symbols ( eg double-lines and some other miscellaneous line-drawing shapes) are generic diamonds. Attached is a fbgrab ( png format ) of elinks showing the problem. I have now configured elinks to only use single lines drawing characters ( which work fine ) for now as a work around. Here is my /etc/default/console-setup
Code:
# Change to "yes" and setupcon will explain what is being doing
VERBOSE_OUTPUT="no"
# Setup these consoles. Most people do not need to change this.
ACTIVE_CONSOLES="/dev/tty[1-6]"
[code]....
The numbers in the FONTFACE show the size of the font matrix. For example Lat2-Terminus20x10.psf is a font for codeset Lat2 with size of the font matrix 10x20 (i.e. 10 columns and 20 rows). If the number of columns is 8 then only the number of rows is specified. For example the font matrix of Armenian-Fixed15.psf has size 8x15.
In text video mode or if you use the RadeonFB kernel module only fonts whose font matrix has 8 columns can be used (that is the size should be a simple NUMBER rather than a NUMBERxNUMBER combination). The other fonts can be used only with framebuffer video modes and with the package 'kbd'. The console package 'console-tools' can not be used
with such fonts.
THE TERMINUS FONT:
The aim of the Terminus font is to reduce the eyes-fatigue when one has to read a lot. Currently this font supports only the Latin, the Cyrillic and the Greek scripts (the Lat15, Lat2, Lat7, CyrAsia, CyrKoi, CyrSlav, Greek, Uni2 and Uni3 codesets). The fonts with font face TerminusBold and size 14 or 16 are optimized for 8 pixels width glyph matrix (in most cases this means framebuffer). The fonts with font face TerminusBoldVGA and size 14 or 16 are optimized for 9 pixels width glyph matrix and can not be used with
framebuffer video modes.
The fonts with font face Terminus and size 14 or 16 can be used both with 8 and 9 pixels width glyph matrix. In the regular text video modes the width of the glyph matrix is 9
pixels. If you use the package svgatextmode then the width is 8 or 9 pixels and you probably know it. The Terminus font in this version of console-setup is version 4.26.
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May 3, 2011
I'm having trouble setting up PuTTY with Ubuntu. I'm trying to get line characters to work in aptitude as well as 256-color support, but can only get one or the other.
Ubuntu Config:
Using 64-bit Ubuntu
Terminal type xterm-256color or putty-256color gives 256-color, but incorrect line characters.
Terminal type linux gives proper lines in aptitude, but only 16 colors.
PuTTY Config:
Using font with Unicode characters. (DejaVu Sans Mono)
Received Data is assumed to be in UTF-8.
Set to use Unicode line drawing code points.
Output from locale:
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Jun 24, 2009
I upgraded in Ubuntu from 2.6.28-13 to 2.6.30 and now I get no line-drawing characters in applications like alsamixer; instead they are replaced by 127-bit chars like 'lqqk'. As a coder, I'd really like to understand what happened - what changed (file in /etc?) affecting terminal capabilities, and what does the kernel have to do with it .
PS: the distro is Jaunty and I used the debs at http://kernel.ubuntu.com/~kernel-mainline/:
Code:
linux-headers-2.6.30-020630_2.6.30-020630_all.deb
linux-headers-2.6.30-020630-generic_2.6.30-020630_i386.deb
linux-image-2.6.30-020630-generic_2.6.30-020630_i386.deb
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May 13, 2010
I am using 9.10 and my ability to "ctrl + alt F-dey" to a ttys shell no longer is available after running an update. 10.04 has the same bug. Getty is installed and I can not figure out what happened.
How do I get ttys back?
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Oct 11, 2010
1. Unable to find frequently used Special Characters and Symbols in Novell openoffice writer. 2. How to import more symbols for writer while using Special Characters in Writer.
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May 11, 2010
I'm a web designer, and a key part of my job is to edit and make images and designs
On windows, I'm used to Fireworks, and illustrator.
Whats the equivalent in ubuntu?
Windows stinks, macs are overpriced, and linux rocks. taht's why im trying to design on linux :-
Also, do you think drawing pads will work on ubuntu?
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May 11, 2010
So have you ever tried a drawing pad for GIMP before?
Do the drivers work?
What image/illustrator editor do you prefer?
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Jan 8, 2010
I want to sort a number of lines based on their size:
data:
-------
12345678
87654321
1234
[code]....
Should output as:
-----------------
1
2
12
21
[code]....
But i'm gettings this with sort
----------------
1
12
123
1234
[code]....
Can we sort the above "data" text, based on "number of characters" instead of "character order"?
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Apr 5, 2010
By issuing the 'nm' command on shared library (internally using one static library), the functions exposed by static library is also being listed, Which allows to use internal functions which is of course not intended. I have one static library having A(), B() and C() functions. Creating one shared library which has function XYS() that is using A() and B() functions from Static library. While doing 'nm' on shared library, all the static library function are being listed.
Static Lib:
#include<stdio.h>
void A(char *msg)
{
printf("
[code]....
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Nov 1, 2010
We have a list of cyclones in the world. Now i got to check whether or not the second field is more than 1000 mm. If so, than the line has to have a[*] at the end of the line. For exemple:
Australia:1411:55.55:Mackay Cyclone 1918:1918:Mackay
to
Australia:1411:55.55:Mackay Cyclone 1918:1918:Mackay[*]
I also have to use a substitute. So far i've got this but it fails, 6,$s/([0-9])111:1/.* [*]
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Sep 13, 2010
Any time the word The appears at the beginning of a line, I want to move it to the end of the line and capitalize the new first word in the line. For example, The heaven becomes Heaven the. I'm trying to test this out for my Library.
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Jun 3, 2010
I'm having a bit of a headbanger trying to work this one out. I'm trying to remove all of the characters on a line apart from the last 17. For example, I need to change this:
Code:
00000000000000000089;0bbfaeb8
01000000000000000089;0bcb5948
00000000000000000089;0bcc4c40
[code]....
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Dec 29, 2010
I would like to replace 'xxxx' with 'yyyy' which is in a file xyz.csproj not sure of what 'xxxx' is, it can be 3055, 4056, 7089 etc. I know it always appears at line # 5 and at character 50.
<Reference Include="System.Management" />
<Reference Include="System.ServiceProcess" />
<Reference Include="System.Windows.Forms" />
[code]....
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Dec 21, 2010
Probably an easy question but my googlefu is weak. How do I change the number of characters per line for konsole?
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Mar 23, 2011
I have a bunch of files (around 900) that have some special characters. Some of the files contains example, and quoting "[useless] filename (something)"so what I want is just to strip the brackets and parenthesis, some are folders, others are text files
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Apr 23, 2010
I am playing with various characters in the command- line interface trying to learn what they mean and when i should use them.
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Feb 6, 2011
I wish to replace a new line with br (html) but it doesn't seem to work
Code:
message=$(echo ${FORM_message} | tr '
' '<br />' )
what it gives me seems to be ... b...? I am also having problem escaping hash sign in cut command:
Code:
list=$(echo "$line" | cut -d'#;#' -f1) ;
my intention is to split the line with "#;#"
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Jan 28, 2011
I'm having trouble getting a sed command to work. I need to filter a printed line to get characters between 2 expressions. "<job>" and "<url>".
Code:
echo "<job>TEST<url>http://www.project.com/?code=001" | sed 's/^[<job>]*//' | sed 's/[<url>]*$//'
Produces:
Code:
TEST<url>http://www.project.com/?code=001
It takes off the first part but why is that not deleting the "<url>" and all the parts after that?
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Jul 14, 2010
I've written myself a linux program "program" that does something with a regular expression. I want to call the program in the bash shell and pass that regular expression as a command line argument to the program(there are also other command line arguments). A typical regular expression looks like "[abc]_[x|y]".Unfortunately the characters [, ], and | are special characters in bash. Thus, calling "program [abc]_[x|y] anotheragument" doesn't work. Is there a way to pass the expression by using some sort of escape characters or quotation marks etc.?
(Calling program "[abc]_[x|y] anotheragument" isn't working either, because it interprets the two arguments as one.)
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Jun 24, 2011
I've written myself a linux program "program" that does something with a regular expression. I want to call the program in the bash shell and pass that regular expression as a command line argument to the program (there are also other command line arguments). A typical regular expression looks like "[abc]_[x|y]". Unfortunately the characters [, ], and | are special characters in bash. Thus, calling "program [abc]_[x|y] anotheragument" doesn't work. Is there a way to pass the expression by using some sort of escape characters or quotation marks etc.? (Calling program "[abc]_[x|y] anotheragument" isn't working either, because it interprets the two arguments as one.)
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Dec 23, 2010
I have a log file that contains information like this:
----------------------------
r11141 | prasath-palani | 2010-12-23 16:21:24 +0530 (Thu, 23 Dec 2010) | 1 line
Changed paths:
M /projects/
M /projects/
[code]....
what i need is, i need to copy the data given between the "---" to seperate files, for, e.g. the first set of data between the "---" should be in one file and another set of data in another file.
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Jan 26, 2011
I'm having issue when trying to change a line in a file
[Code]....
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Jun 21, 2010
I can't switch from tty to tty. When I start up (I use startx for X) I can't even switch from tty1 to any other tty at all. When I'm using KDE, and I switch to a tty I have to use Ctrl-Alt-F*. When I do, it switches to the tty and after that I can't switch back to X or any other tty.
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Mar 9, 2010
I have searched the web, tried getting support on IRC, and even tried some drastic measures that I came up with on-the-fly, but could not get satisfactory results.After installing the 2.6.31-20 kernel, I have noticed, that virtual terminals ( or whatever should I call those. The ones that are accessed by ctrl+alt+[function_key]) stopped loading. When I open any of them I only see a cursor and nothing else. I can take almost no actions: the only two things that actually work are changing between terminals and ctrl+alt+delete.
Eventually, I gave figured out, that this happens because getty is not launched automatically. After running appropriate command, each terminal can be recreated for the current session. Tried fixing this by creating a script that would run that command on each startup, but could not actually make the script to be executed (I tried making rc to run it, as I need these terminals to be present when GUI is not yet activated).Right now, I see two possible solutions: either make them autoload like they are supposed to, or work out a way for that script to be ran on startup. So, any ideas?Ah, yes. Also, the GDM now loads on tty2. Will it give me problems if it continues like that?
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Apr 14, 2010
I have a laptop which has only one serial port.
I went into:
How do I know which of those "ttyS" refers to my serial port?
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Jul 7, 2010
[Arch Linux] This has been mildly annoying ever since I installed Arch. From X, I can switch to any of my ttys, using Ctrl+Alt+FN. But when I'm in a console, that key combination does nothing, and I have to restart X11 to get back.
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Jul 8, 2011
What command could I use in terminal to delete all ASCII characters? That is, delete a-z, A-Z, 0-9, and all punctuation? I have a file containing Chinese characters, and I want to remove everything else and leave just the Chinese.
I can use grep to leave only the lines that have Chinese in them, but this still leaves a lot of non-Chinese stuff on those lines. Does anyone know how I could actually remove everything that isn't Chinese?
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Aug 28, 2011
While modifying the definition of my PS1, I saw that "[" and "]" markers should be added to help bash to compute the right display lenght. Many exemples on the web do not use them or even mention them.I searched for a solution to add them automatically, like with sed, but I didn't find any example.Are they still needed and is there a recommandation not to use sed to define PS1?
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Apr 19, 2010
I'd like to know how to leave only tty1 and 2 and permanently disable others. (I'm running Lenny/i386).
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May 21, 2010
I'm trying to complete the porting to RHEL 5 of a commercial application that we've had running on AIX and SCO for decades. It originally ran on dumb-terminals, and even now runs on dumb-terminal emulators that run on Windows. We have thousands of customers, many of whom we'd like to migrate to Linux. We're pretty much done with the port, with the exception of this little glitch we're having with pseudo-ttys...
Our app utilizes pseudo-ttys, such that sub-portions of the application run under a screen manager that provides for screen-switching of multiple instances of the sub-apps on non-GUI terminals, some of which are still running serial. In this regard, it is not unlike the GNU "screen" program. However, it also supports file transfers over serial links using zmodem, and requires the ability to switch in and out of a fully 8-bit transparent mode where the screen switching keyboard commands must be ignored.
On AIX, we're using the BSD TIOCUCNTL (UIOCCMD) capability to send commands from the sub-app to the screen manager. TIOCUCNTL provides custom user ioctls and is an ideal way to solve the problem. It is not implemented on Linux, and the "alternative" of TIOCPKT does not provide arbitrary ioctls so at best we'd have to commandeer some of the existing TIOCPKT ioctls for our own use if that's even possible. TIOCPKT seems like a hack, it apparently was implemented not as a general mechanism but to solve problems specific to rlogin/rlogind.
SCO didn't support TIOCUCNTL either, so years ago we used the SVR5 alternative of putmsg/getmsg. This is a streams-based mechanism of sending control information over streams separate from the data. While RHEL 5 seems to have man pages indicating these commands exist, and in fact you can link programs using them to libc without errors, they are apparently stubbed out and return "function not implemented." This seems to be, according to this Wiki, due to certain Linux factions deeming that streams are "technically inadequate":
Certainly, I would agree that a streams implementation that is incomplete is undoubtedly "technically inadequate."
At the same time, it would appear that the SVR5 method of pseudo-tty is now the recommended implementation, the BSD one being "deprecated" (not to mention, also incomplete on Linux, given TIOCUCNTL is missing):
So here I am trying to figure out how to solve the problem. I have found a library that apparently implements the getmsg/putmsg commands for Linux, called libLiS. However, according to IBM, it has a problem with SELinux:
We've had to disable SELinux for other reasons anyway, so this is not a show stopper for us, and I am actively exploring using it as our solution. However, I've never been exactly crazy about the idea of depending on disabling security features to make something work. But, there's something to be said for the compatibility it would offer for our apps.
However, it occured ot me that we are probably not the first to have this problem, and was wondering if perhaps there is another solution that we should consider.
It has occured to me to use named pipes, but this would be rather ugly--we'd have to maintain a directory full of hundreds of named pipes, probably named after the associated ptys that the sub-apps could use to issue control commands to their screen manager, and the manager would have to monitor these pipes for commands, etc.-- certainly possible, but it seems like it might be re-inventing the wheel a bit, or at the very least, is a somewhat kludgy work-around to the apparent lack of any user-customizable control mechanisms in the pseudo-ttys. And we'd have to support it in addition to the code for the other methods since those platforms aren't going away anytime soon (SCO death-throes notwithstanding).
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