Ubuntu :: PDF File Shows Math Symbols But Printer Does Not?
Jan 31, 2010
I have Ubuntu 9.10 installed and up to date.
I have an HP Laserjet 2200 connected via USB with 64MB of memory. When I print page 2 of this document (for example) [URL] the delta-symbol and minus-signs do not show up, although I see them in Adobe reader version 9.3.
I have tried several of the available drivers for the printer (including the "[recommended]" one) and none of them produce these symbols.
I'm guessing this is a font issue. I don't know how to show you what font stuff I have installed.
[Code].....
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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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May 16, 2011
I'm on Ubuntu 11.04. I have read around about how to use curl to download a list of URLs from a text file, and everyone says to use
Code:
curl -K URLlist.txt This is what the curl man page says as well. However, for even a simple file with one URL, this command outputs a bunch of weird symbols for me instead of downloading the file. For example, I have a text file "test.txt" with one line in the following format:
Code:
url = "http://www.example.com/image.jpg" I use the curl command to download this file:
[Code]...
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Aug 21, 2010
Arm-linux-strip for removing the symbols from binary executable file after compilation. What exactly the symbols means.
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Aug 4, 2009
I am trying to delete these symbols "[ ]" from a file but it says string not found. I tried: %s/[//g while editing the file not working also tried sed -e '/[/d' and sed '/]/d' still no job.
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Oct 28, 2010
I have a quirky situation whereby I'm using SED to selectively comment out a line in a crontab job (on Solaris, I know but it's connected to the Linux function I'm working with).
What's happening is this.
Remove hash symbol
Code:
/opt/csw/bin/gsed -i '/^.*/usr/local/scripts/mirror-fix.sh.*/ s/^#//' $TEMPFILE
Restore hash symbol
Code:
/opt/csw/bin/gsed -i '/^.*/usr/local/scripts/mirror-fix.sh.*/ s/^/#/' $TEMPFILE
The problem I'm running into is that the script can sometimes prepend an extra hash # symbol if run more than once (I have a lockfile that I poll for to discourage this, but that's not perfect).
I wonder how I can modify that sed statement to remove any/all leading hash marks up to the first other character, in this case it's a 0 (zero) which is a crontab file.
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May 16, 2011
I'm on Ubuntu 11.04. I have read around about how to use curl to download a list of URLs from a text file, and everyone says to use Code:curl -K URLlist.txt. This is what the curl man page says as well. However, for even a simple file with one URL, this command outputs a bunch of weird symbols for me instead of downloading the file.For example, I have a text file "test.txt" with one line in the following format:
Code:
url = "http://www.example.com/image.jpg"
I use the curl command to download this file:
[code]....
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Jun 15, 2011
My elderly HP Laserjet 4P has worked well for over 15 years. I have it connected to the home network via a Trendnet TE100-P21 Print Server, and setup has always been straightforward and easy. The whole setup has worked quite well with Fedora 9 or 10 thru 14, but then stopped working within the last couple of weeks. I'm assuming an update broke something, as I can find no other reason. When I send a print job or test page, I get a Print Error dialog. The print que shows a "stopped" status for the job. In the Error dialog I use the Diagnose button and step through until I get the Status Messages dialog, which informs me: "The printer's state message is: 'Data file sent successfully'".
Then I enable debugging and send a test page. Stepping through the dialogs it tells me it cannot detect a problem, and gives me an error log, which I've attached. The Trendnet server has a web admin interface. In that interface I can send a test page successfully. Also, I can open a VirtualBox (Windows XP) in Fedora 14, and successfully print from it. My print setup in Fedora is the same as it has been for several years now, and nothing has changed on that end. I have rebooted Fedora and the Trendnet server. All other computers/OS's on the network have no problem printing, only this Fedora 14, and only recently.
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Aug 3, 2010
Used to work perfectly. I attempted to install VPN client, result is can't connect to anything. Networks are seen by network manager, nothing happens when click connect. Results below:
Wireless LAN present in Hardware information. Atheros AR242x 802.11abg Wireless PCI Express Adapter (wlan0)
Kernel Driver: ath5k
168c:001c
/var/log/boot.msg
[code]....
Advice is to use output of dmesg command to find problem, but as above I don't get any results for this in terminal.
attempt to ping external site
linux-cfi6:~ # ping -c 66.70.73.150
Usage: ping [-LRUbdfnqrvVaA] [-c count] [-i interval] [-w deadline]
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May 25, 2011
I cannot print using my Brother HL 2240. It shows "not connected." Here is the troubleshooting log.
[code]...
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May 16, 2010
Code:
Why are basic math problems returning 0? I know that Integers can only hold whole numbers, and it had the exact same problem when I used floats. I am using GCC 4.4.4.
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Apr 30, 2015
When I try to compile this code:
#include <math.h>
int main (void) {
double x, y;
x = 2;
y = sqrt(x);
return 0;
}
With the command:
$ gcc test.c
I got this message:
/tmp/cc5QZmCN.o: In function 'main':
test.c:(.text+0x16): undefined reference to 'sqrt'
collect2: error: ld returned 1 exit status
I tried this on a fresh jessie install. I have the same problem on wheezy.
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Sep 1, 2010
I just built a VMWare VM from the Fedora 13 DVD - 64 bit. It now wants to do 385 updates so I let it download all of the rpms. As it starts to do the install I get a Transaction Error to the effect
Quote:
Test Transaction Errors: installing package kernel-2.6.34.6-47.fc13.x86_64 needs 8MB on the /boot filesystem
System monitor shows that I have 19.7 MiB available on /boot - so what is going on?
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Jun 27, 2010
I've started programming in c recently . following are the details about scene:
* vim is editor and program is compiled in gcc whenever a program involving math function appears it gives error i.though math.h is included in header file compiler complains about it it gives error of unrecognized function that math function like sqrt, etc question is how to connect math.h to a program.
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Feb 16, 2010
Here is my situation:I have a series of .plt files that are geared for a device that has it's xy origin at the lower left of the paper however some devices use the center of the paper as it's origin in a piped shell script how can I convert this file to a center origin plot file?Here are some knowns: the existing file always Lower Left 0.0 the existing file max xy is the page upper right x.x the desired output file must have it's 0.0 at the exact center of page (page size will vary). Ideas: Based on the sample files included maybe use PU and PD as the triggers for inputs to be calculated as any other commands have nothing to do with coordinates.
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Jun 8, 2010
I wrote a perl script to feed information to our load balancer:
Code:
#!/usr/bin/perl
#
use strict;
#use warnings;
#
#
use Net::SSH::Perl;
my $user="bluethundr";
my $pass="secret";
my $dir="$ENV{HOME}/data";
open (LBVSERVERS), '<', "$dir/lb-vserver" or die "Couldn't open file: $!";
open (CSVSERVERS), '<', "$dir/cs-vserver" or die "Couldn't open file: $!";
my $ssh = Net::SSH::Perl->new("10.50.0.1");
$ssh->login("$user", "$pass");
print " .....
I need to be able to install the Math::Pari CPAN module in order to accomodate the Net::SSH CPAN module. The prereqs are installed:
Code:
cpan> install Net::FTP
Net::FTP is up to date.
cpan> install LWP::UserAgent
LWP::UserAgent is up to date.
But when I either try to install or force install Math::Pari this is what I get:
Code:
cpan> install Math::Pari
Running install for module Math::Pari
Running make for I/IL/ILYAZ/modules/Math-Pari-2.01080604.tar.gz
Checksum for /home/bluethundr/.cpan/sources/authors/id/I/IL/ILYAZ/modules/Math-Pari-2.01080604.tar.gz ok
Math-Pari-2.01080604/ .....
CPAN.pm: Going to build I/IL/ILYAZ/modules/Math-Pari-2.01080604.tar.gz
Did not find GP/PARI build directory around.
Do you want to me to fetch GP/PARI automatically?
(If you do not, you will need to fetch it manually, and/or direct me to the directory with GP/PARI source via the command-line option paridir=/dir)
Make sure you have a large scrollback buffer to see the messages, or 'tee' the STDOUT/STDERR to a file.
Fetch? (y/n, press Enter) y
Getting GP/PARI from ftp://megrez.math.u-bordeaux.fr/pub/pari/unix/
Cannot list (Failed to establish connection.
): at utils/Math/PariBuild.pm line 319, <STDIN> line 1.
Can't fetch file with Net::FTP, now trying with LWP::UserAgent...
You do not have LWP::UserAgent and/or HTML::LinkExtor installed, cannot download, exiting...
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Oct 28, 2010
I am trying to map the coordinates of a grid.
Code:
R=7 # number of rows (lines)
C=6 # number of columns
X=200 # initial horizontal location
Y=100 # initial vertical location
[code]....
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Sep 14, 2010
I have a user that wants to use basic math functions from the command line like sqrt and such. Apparently it was installed on the previous server we were using, but not on this new Debian server by default.
Anyone know what package has that functionality?
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Jul 15, 2011
Our one remaining problem seems to be printing. She has an HP OfficeJet 6500 USB printer. We have the computer conntected. Strangely, when I boot from the CD the printer shows up as installed even though I did nothing to install it. After having submitted a print job it shows the printer status as "idle" and the print queue is empty. I tried deleting that printer and re-installing. The installation went as one would expect. However the results are the same. I'm beginning to think that somehow the problem is related to the fact that we are operating from the live CD. getting this thing to print from the live CD.
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May 26, 2010
I've been trying to ssh out of my home network to school computers and I keep getting:
ssh: connect to host sage.math.washington.edu port 22: Connection timed out
I've tried this on my machine (running Ubuntu 10.04) and on a windows 7 machine (using putty). I have been successful ssh'ing to this machine using either of the laptops from every other network I've tried, so I'm pretty sure it's something about my home network.
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Jan 3, 2011
I've bought a HP Photosmart printer, HP Photosmart wireless e-All-in-One printer - B110a and i've got a problem installing it properly. I'm using Debian 6.0 Squeeze. When i connect the printer, Debian doesn't recognize my printer as the Photosmart B109 printer for unknown reason. When i go to the site of HP and search for a driver, it directs me to this site:I've downloaded that latest hplip file as a .run file and installed it. My printer is recognized proparly, but when i try to print a colored image, it comes out black/white. Something is not crrect. Does anyone recognize this problem with this type HP printer?
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Apr 11, 2010
How do I get a .ppd or similar file from a .deb.sh file for a printer?
The printer in question is a lexmark S305, the file is:
lexmark-inkjet-09-driver-1.5-1.i386.deb.sh
it is from this page:
[URL]
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May 19, 2010
I see these activities logged on a fairly regular basis in /var/log/auth.log and was wondering if this is normal activity?
firefox: gethostby*.getanswer: asked for "ftp.cs.rose-hulman.edu IN A", got type "DNAME"
The format is always the same, though sometimes the address is a regular Internet site.
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Oct 9, 2009
I didnt used ubuntu till now..and now i decided to start with ubuntu and downloaded the iso file torrent from Complete Download Options List | Ubuntu named ubuntu-9.04-desktop-i386.iso.torrent...but after downloading it shows that its a winrar archive......can i do anything with this rar?
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Nov 23, 2009
I just upgrade to Fedora 11.
I have problem in installing the printer, no matter add printer in local network or Windows Printer via Samba.
The summary is as follow:
I have download a printer driver and had installed but got error when I tried to printer a test page.
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Oct 20, 2009
I want to configure file printer (print to file) on my rhel-5 machine in such a way that if users fire print command from windows xp it should create an individual computer wise txt file on my linux machine. File name should be different for each printer.
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Feb 4, 2010
I was just wondering why my Dual-core Processor shows basically a mirror image where CPU core loads cross. On something like a file transfer, shouldn't they both be at the same level?
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May 2, 2010
My connection manager shows wired connections and shows wireless as being disabled. here is some terminal info getting wireless going?
Here is a bunch of things I have tried and the results.
nixon@nixon-desktop:~$ sudo ifup wlan0
Ignoring unknown interface wlan0=wlan0.
nixon@nixon-desktop:~$ sudo ifdown wlan0
ifdown: interface wlan0 not configured
[Code].....
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Jan 8, 2010
I'm encountering a strange problem. I need to open and forward all UDP and TCP ports related to VoIPtelephony (5000:32000) in the Suse 11.1 server that's acting as router/firewall in our setup. The ports must redirect to a Asterisk server in the local network. (This server has the IP adress 192.168.0.3)I've opened ports in Yast (Firewall>Ports>Advanced) and putted in some masquerading rulesirewall>Masquerading):0/0,192.168.0.3,tcp,5000:31000,5000:310000/0,192.168.0.3,udp,5000:31000,5000:31000when I do a nmap localhost I get:Starting Nmap 4.75 at 2010-01-08 16:52 CETInteresting ports on localhost (127.0.0.1):
Not shown: 991 closed ports
PORT STATE SERVICE
21/tcp open ftp
[code]....
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Jul 9, 2011
I like the easy readability of fwlogwatch (as compared to the Log File Viewer). But fwlogwatch doesn't display port number or date when I run it in terminal.
Is there a log viewer that displays clean like fwlogwatch but displays all the information that Log File Viewer does?
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