06-09-2010
netcat prints blank pages
Please direct me to the right forum tree if i am in the wrong section for this.
i have netcat on a unix machine and there is no man nc or man netcat available.
my command i am using is:
cat $FILE1 | netcat -h $PRINTER -p 9100
(-h -p -d are the only flags available in this version of netcat)
the printer will print the first line where its suppose to go, then the second line below the first, but all the way to the right of the paper like so:
HTML Code:
[pre]
__________
|1st line |
| 2n|
| |
| |
~~~~~~~~~~
[/pre]
what i think is happening is that the printer is more or less just printing to the right and not really printing down. if i have three lines, it prints the first page exactly as you see it, then two other pages completely blank!
10 lines will be ~9 pages blank (unless they are really long lines, then its many more pages)
has anyone ever heard of this or knows a solution to this?
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
Hello Everyone :) ,
I have this printer installed on the network which is an HP 1160.
When sending a print job to the printer from SCO Unix 7.1 it prints one line of text and the rest of it comes up with blank pages.
I have tried deleting the printer and recreating it; but I am getting... (6 Replies)
Discussion started by: George26
6 Replies
2. UNIX for Advanced & Expert Users
I'd like to do a data transfer without encryption but with a guarantee that my data comes from a legit source. I'm thinking something that uses a public key scheme to sign the data.
Does anyone know of something like that?
Thanks!
-Pileofrogs (1 Reply)
Discussion started by: pileofrogs
1 Replies
3. Shell Programming and Scripting
Is there a way how to react on the message a client sent to the server?
I would like as the client sent message to server: "get information such and such" and server would answer.
Thank you for reply! (6 Replies)
Discussion started by: MartyIX
6 Replies
4. Linux
Hello,
Thank you very much for the line nc -lp <port> . I tried to run simple chat session with nc as it's shown in catonmatDOTorg but failed miserably with that syntax inspite of opening port 7777 by iptables . But your command example is working nicely.
So a bagful of thanks :))
Only one... (0 Replies)
Discussion started by: vectrum
0 Replies
5. Shell Programming and Scripting
Hi;
I have a url like
http://localhost:8080/examples/jsp/dates/nextPageToPost.jsp?name=ajay&password=pas&sex=Male&check=on&nationality=USA&description=aa&submit=submit
in which i want to use nc for http post for parameters like "name","password"....etc
can neone please help me how to do that... (3 Replies)
Discussion started by: ajaypadvi
3 Replies
6. Emergency UNIX and Linux Support
Hi all,
I have a script from a programmer, for which I need to analyze a problem.
The script gathers audit info and prints out the results. Two different departments use it, on two different printers. In the script department the there are no issues. In the other department the same script... (10 Replies)
Discussion started by: zixzix01
10 Replies
7. IP Networking
Hi all,
I know my question is regarding Windows and not Linux, but I simply need people who know Netcat pretty well and I'm guessing here is a good place for that. So on with my question.
I'm doing some research, and I was playing around with netcat on a WinXP VM but I can't seem to get... (0 Replies)
Discussion started by: MrCrumbs
0 Replies
8. Solaris
Help!
I have to solve an urgent problem!
I have a Solaris 10 server, where I created a line of printing with the command
# /usr/sbin/lpadmin -p IL_Printer -s pv24002 -v /dev/null -m netstandard_foomatic -A write -n /usr/lib/lp/model/ppd/system/foomatic/Canon/cnl66e1.ppd.gz -o... (0 Replies)
Discussion started by: poyato
0 Replies
9. UNIX for Advanced & Expert Users
Currently I run a number of network tests using netcat that checks for an open port on a remote IP-address, using this syntax:
netcat -v -w 5 -z 107.249.95.5 4488
For some reason, the netcat command above is hanging (although others work fine), but a telnet is showing a valid connection like... (4 Replies)
Discussion started by: ckmehta
4 Replies
10. Emergency UNIX and Linux Support
Dear Linux guru's
I am trying to create a webserver using nc (netcat only) on RHEL 7.2 running on bash shell.
now the easy thing is to get nc listing to a port and respond back
$ while true; do { echo -e 'HTTP/1.0 200 OK\r\n'; set; } | nc -l 7877; done
This when called from a... (3 Replies)
Discussion started by: chakrapani
3 Replies
LEARN ABOUT OPENDARWIN
iswblank
ISWBLANK(3) Linux Programmer's Manual ISWBLANK(3)
NAME
iswblank - test for whitespace wide character
SYNOPSIS
#include <wctype.h>
int iswblank(wint_t wc);
Feature Test Macro Requirements for glibc (see feature_test_macros(7)):
iswblank():
_ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L
DESCRIPTION
The iswblank() function is the wide-character equivalent of the isblank(3) function. It tests whether wc is a wide character belonging to
the wide-character class "blank".
The wide-character class "blank" is a subclass of the wide-character class "space".
Being a subclass of the wide-character class "space", the wide-character class "blank" is disjoint from the wide-character class "graph"
and therefore also disjoint from its subclasses "alnum", "alpha", "upper", "lower", "digit", "xdigit", "punct".
The wide-character class "blank" always contains at least the space character and the control character ' '.
RETURN VALUE
The iswblank() function returns nonzero if wc is a wide character belonging to the wide-character class "blank". Otherwise, it returns
zero.
ATTRIBUTES
For an explanation of the terms used in this section, see attributes(7).
+-----------+---------------+----------------+
|Interface | Attribute | Value |
+-----------+---------------+----------------+
|iswblank() | Thread safety | MT-Safe locale |
+-----------+---------------+----------------+
CONFORMING TO
POSIX.1-2001, POSIX.1-2008.
NOTES
The behavior of iswblank() depends on the LC_CTYPE category of the current locale.
SEE ALSO
isblank(3), iswctype(3)
COLOPHON
This page is part of release 4.15 of the Linux man-pages project. A description of the project, information about reporting bugs, and the
latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.
GNU
2016-03-15 ISWBLANK(3)