General :: What Is Meaning That File Is Named Pipe (FIFO)?
Jul 12, 2011What is a pipe? and why a file is a named pipe? I am just learning linux.
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Programming :: Handle A Broken Pipe Exception (SIGPIPE) In FIFO Pipe?
Mar 2, 2011I've written a simple server in linux used fork to create a FIFO pipe.The server create two FIFO pipe.One for server read data from client and write data to client.Then another pipe for client read data from server and write data to server.When the server read data from a client used server-pipe and then write data to client.But ,if the client no read open the pipe,the server side write will be crashed because of a broken-pipe SIGPIPE. How to check whether the read side is opened?Or,how to catch the SIGPIPE,and then my server will still execute on,not crashed!!
View 5 Replies View RelatedGeneral :: Feed Text To File Editor From Named Pipe
Apr 24, 2011Does any one know how can i input text by reading from a named pipe to any popular GUI based text editor?
View 5 Replies View RelatedProgramming :: Orrect Command To Create A Named Pipe File?
Apr 22, 2010My question deals with me creating a name pipe (file) in the my /group directory called chat.I then have to write a script to read from the named pipe and save data into a file called chat.log until the words End of File are passed to the program.
-When I created the named pipe file (chat) I used the mknod chat p command..Is this the correct command to create a named pipe file? -Then I'm having trouble with my script and how to make it run until the words End of File are entered in. This is what I have so far.
General :: Can't Scp A Named Pipe?
Aug 2, 2011I am trying to encrypt a file on-the-fly, redirecting the output to a named pipe [fifo]. I SSH into my server and run the command:mcrypt -k key < file > named_pipethen from my laptop I try to scp it:$ scp me@server:~/dir/named_pipe d it says scp:users/home/me/dir/named_pipe: not a regular file
View 1 Replies View RelatedGeneral :: Trying To Create One Named Pipe Using Mkfifo.but Its Not Working Properly?
Jun 22, 2010i'm just trying to understand named pipes in linux.For that i'm just trying to create one named pipe using mkfifo.but its not working properly..following is my code snippet. so if anyone comes across the mistake i made
Code:
#include <stdio.h>
#include <errno.h>
[code]....
Software :: File /var/lib/named/var/named/reverse/named.zero Failed: File Not Found
Mar 14, 2009Mandriva 2009, BIND 9.5.0-P2. Named will start however I'm getting the above error as well as these:
14-Mar-2009 15:45:37.084 general: error: zone 0.in-addr.arpa/IN: loading from master file /var/lib/named/var/named/reverse/named.zero failed: file not found
14-Mar-2009 15:45:37.084 general: error: zone 0.0.127.in-addr.arpa/IN: loading from master file /var/lib/named/var/named/reverse/named.local failed: file not found
[code].....
Named shows to be running but with the errors above I know it's not running correctly. I also copied the above dir's over to /var/lib/named/var/lib/named which is where I 'believe' it's chroot'd at, though I could be wrong since I'm unfamiliar with chroot.
Ubuntu Servers :: Save All Of The Mail Sendmail Processes To A Named Pipe?
Apr 12, 2010how I could save all of the mail sendmail processes to a named pipe?
View 5 Replies View RelatedServer :: /etc/named.conf:57: Open: /etc/named.root.hints: File Not Found
Apr 1, 2011I am using Cent OS 5.5 and i want configure DNS, but while configuring bind i am getting below error.
#/etc/init.d/named restart Stopping named: [ OK ]
Starting named:
Error in named configuration:
/etc/named.conf:57: open: /etc/named.root.hints: file not found[FAILED]
General :: Meaning Of File Command Output?
Feb 27, 2010I used the following command
Code:
file /usr/bin/mawk
Output is
[code]...
General :: Concept Of File System - Meaning Of Arrows
Feb 25, 2011I've several questions to ask: Why do some files have black arrows pointed outward in my file system? Why are some files in compressed form, e.g. initrd.img?? How are such files used by the system??
View 2 Replies View RelatedGeneral :: Read File And Pipe To Grep
May 26, 2011I'm storing a list of strings in a file and would like to read the file and pipe each line returned to grep which in turn searches a directory for files containing the string.However this is not returning any output.
View 2 Replies View RelatedGeneral :: Nawk - Input From A Pipe And A File At The Same Time
Sep 16, 2010I am tying to read a file in with nawk whilst trying to take input from a pipe. I've come across the getline option and no matter how hard I try, I can't figure out the correct syntax. What I want to do is to take some input from the pipe and make a comparison with all of the values in a file and print a match.
Code:
General :: Encoding With FFmpeg Using A FIFO
Dec 28, 2010I'm trying to convert Flac audio file to AAC file using command line. It's working fine. Now I want to do the same using fifo And it's freezing.So could you tall me what I'm doing wrong.
View 2 Replies View RelatedGeneral :: Copy File Named Starting With A Dot?
Mar 31, 2011I am trying to copy all files under directory A to directory B. All files under directory A are starting with dot, for example:
A/.a
A/.b
A/.c
which I found if I use: cp A/* B, always get error:
cp: cannot stat 'A/*': no such file or directory
It seems there is no option for cp as ls to handle entries started with dot
General :: Created A Script File Named Myscript.sh?
Apr 17, 2010i created a script file named myscript.shi ran this by typing sh myscript.sh and i got my outputbut,when i tried to execute by typing ./myscript.sh i received permission denied errori gave permission as chmod 777 myscript.shthen i executed by typing ./myscript.sh . It worked fineso i wanted to know whether using sh and ./ with permissions are same.. ?or did it work for only this.. are there any differences
View 1 Replies View RelatedGeneral :: Made A File Named * In My Home Directory / Remove It?
Oct 19, 2009how do i remove it?
View 4 Replies View RelatedGeneral :: Create A File In The Current Directory Named '5' With The Number '2'?
Aug 24, 2010Code:
$ echo 2 * 3 > 5 is a valid inequality. This will create a file in the current directory named '5' with the number '2' in it, the names of all the files in the current directory, followed by the number '3' and 'is a valid inequality.'
What I do not understand is why 'is a valid inequality' gets written to this file. I thought it would write '2', all the file names in the current directory, then '3' into the file called '5'. Why does the 'is a valid inequality.' get written to the file also?
General :: Determine On System Where Process Substitution Creates FIFO Files?
Aug 16, 2011I'm writing a C++ application and need to work with process substitution in the Bash shell. I'm trying to find a way to validate the paths passed as arguments to my program, some of which point to FIFO files created by process substitution.
Is there a shell (or C++) way that I can check if the system creates these files in /dev/fd or if they are created somewhere else?
Ubuntu Servers :: How To Understand Log File Meaning?
Apr 13, 2010a lot of log file store in location /var/log/ but how to understand what the meaning in side the log file recorded down? how to find out the problem from the log file?
View 2 Replies View RelatedUbuntu :: Meaning And Need For Creating Make File
Feb 9, 2011i'm using ubuntu10.10 maverick.im programming in systemc..i dunno how to compile and run my program (*.cpp). where should i save my program and where to create makefile???what is this makefile and how should i create it..got completely no idea and i'm new to ubuntu..so please someone explain clearly the concept.
View 1 Replies View RelatedSoftware :: Meaning Of Traffic And IT File Generated After Simulation In CRCN
Mar 2, 2011How to analyse the IT and Traffic file generated in CRCN simulation? What they represent i.e what is the format?
View 7 Replies View RelatedNetworking :: PING - Pipe 2 Versus Pipe 3
Apr 10, 2009I'm doing ping between 2 RH servers through a VPN site2site tunnel and in some times I got in the result pipe 2 and another pipe 3 as I mark it in blue color below.
e.g.
64 bytes from 192.168.1.10: icmp_seq=0 ttl=128 time=0.229 ms
64 bytes from 192.168.1.10: icmp_seq=1 ttl=128 time=0.287 ms
64 bytes from 192.168.1.10: icmp_seq=2 ttl=128 time=0.278 ms
[code]....
What's the difference between pipe 2 and pipe 3 and what's the meaning of it?
General :: Delete A File Named "-p" From Bash?
Jun 4, 2010How do I delete a file named -p in bash? Trying rm "-p" complains that -p is not a valid argument.
View 2 Replies View RelatedUbuntu :: Can't I Pipe Into The 'file' Command?
May 9, 2010I'm looking for an mp3 file in the firefox cache folder.I was thinking I could run the command 'find -size +2M' and pipe that output into the 'file' command to tell me which is an mp3, something like thisfind -size +2M | fileBut this doesn't work, what am I doing wrong?This is output Usage: file [-bcikLhnNrsvz0] [-e test] [-f namefile] [-F separator] [-m magicfiles] file...file -C -m magicfilesTry `file --help' for more information.
View 4 Replies View RelatedProgramming :: Pipe Output Of Ls To File?
May 3, 2011I want to pipe the output of ls in a folder to a file (lets call it test.txt) but when i do so, but when i do ls > test.txt in test.txt there is also test.txt (logical
View 4 Replies View RelatedGeneral :: Remove A File Named "."?
Jun 28, 2010I found a file in a directory named "." Not the "." indicating the directory but an actual file with content in it. This, as you can imagine is causing all sorts of problems. The problem is I can't figure out how to remove it. How would I remove a file named "." without deleting the entire current directory. Here is a listing just to show you:
[Code]...
You can see the directory (.) but you can also see the file owned by "user1" named "." of file size 2287. How would I remove this? (Running RHEL 4.6).
Fedora :: How To Pipe Output Of Wine Into File
Aug 19, 2009I have a bug where WoW under wine is crashing my computer, and I want to get the data from the console, so I want to put it in a file, but I don't know how! None of the piping tutorials online helped at all.
View 2 Replies View RelatedGeneral :: What Is ISO Meaning
Mar 16, 2011I can't remember what "ISO" means. I've been busy with other projects, and I forget what release of Ubuntu I'm using. The computer I use the most is running Windoze 7, and I have Ubuntu running on two other machines but use them infrequently.
View 4 Replies View RelatedSoftware :: Pipe Email Using Aliases File Or Script?
Jul 26, 2010have some problems in doing my project, my project title is ' in investigate into implementation of certification authority with small network ' ( with using Postfix, openSSL ) and i have builded up two different networks using debian and after that i need to make a mail server, so i configured Postfix and made a mail server, i can send and receive emails on both networks. now i need a shell script on received emails using Postfix, like mail is coming from outside then will go to pipe and there should a script in bash, that will run and check the email and deliver to others, or throw it away some thing like that... here are some links where i was looking
[URL]
