Server :: Bash Scripting Sending Write Error - Broken Pipe
Apr 19, 2010
I move a page from a server in SuSe to Debian and this script was working well but when I move the page to a Debian base server it is sending in the logs the following message:
cat: write error: Broken pipe, referer: [URL]
The cgi does the following, read a db file plain text that repeat each 15 lines an information where to look the seraching info. if it is there sends to the output the 15 lines block. but it was not sending errors in suse distro, does anybody knows why the cat's line are sending "cat: write error: Broken pipe," if I am not writing or making a pipe with ">" to none file.
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Apr 11, 2010
I connect to our server by ssh, default ssh client on Debian system.when I run a command that has large output on stdout (on shell) my connection is lost and I get error: "Write failed: Broken pipe"Unfortunate on our server there is limitation for connection per hour!
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Jul 18, 2011
Whenever I put ssh into remote machine am getting the following messages. Write Failed: Broken Pipe (After logged into that machine ) Read Socket Failed: Connection reset by peer (While trying to log in ) Also known_hosts file is changed frequently.
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Mar 2, 2010
I have installed a LAMP server (Debian Lenny + Apache2 + PHP Version 5.3.1-0.dotdeb.1). On this machine, my web application (PHP + MySQL) exists in 2 flavours:
- Dev
- Prod
In /etc/apache2/sites-available, I have ims & ims-dev, one for each instance. Their contents are identical in terms of settings, except for the paths (dev/prod):
Code:
<VirtualHost *:80>
ServerAdmin admin@domain.com
ServerName ims.domain.com
ServerAlias ims.domain.com
[code]....
why this difference when the settings are strictly identical? Do I need to add EnableSendfile off in my conf files to stop that?
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Apr 20, 2011
I have script which does file locking via flock and then writing it's pid into that file. It perfectly works being run by hand in terminal, running under cron on Debian, but somehow fails being run under cron on Centos 5.6. Script part and straced outputs are below.
bash code:
#setting lock
mylog "setting lockfile $LOCKFILE"
exec 200<> $LOCKFILE
[code]....
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Jun 4, 2010
I do not know how to write either PYTHON or Bash Shell Scripting. I am to learn one for Linux Administration purpose. Which one will you recommend for a Linux Admin/Eng environment?
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May 10, 2010
I am having a truly bizarre problem when trying to set up my sheeva plug as a backup server. I have four users (one for each member of my family) that I want to give permission to ssh in (well, sftp in but they're essentially the same) and backup to an external harddrive.
My user works perfectly well and has done since I got the plug. So does a transmission user I set up to run the transmission daemon. With the other three users, however, I get the following error after SSH asks for the user's password:
Code:
Write failed: Broken pipe
This happens whether I try locally or over my network. I haven't been able to find a solution to it at all. I've made sure that /bin/bash was set as the shell and that the home directory is writeable with the correct permissions (ls -al /home):
Code:
drwxr-xr-x 7 root root 4096 Dec 21 19:25 .
drwxr-xr-x 21 root root 4096 Dec 17 19:27 ..
[code]...
The alternative for me would be to use netatalk and AFP but the problem is that there is no native support for AFP and so things like d�ja dup backup may not be able to mount the afp drive...
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Mar 2, 2011
I'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!!
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Feb 9, 2010
which cropped up today after no changes to the system: I can successfully ssh into my ubuntu 64-bit 9.10 machine (via OS X with iTerm), but after about 30 seconds, the connection drops with the message "Connection reset by peer Connection to xx.xx.xx.xx closed".
If I then try to immediately ssh back in I get: "Write failed: Broken pipe". If I try to immediately ping the machine instead, I cannot ping it until the ~10th try. Eventually I can log back in again, only to be kicked off after between 5 and 60 seconds. I called the network people and their are no known issue right now with networking. The networking on the ubuntu machine is otherwise fine, it seems. In the /var/log/auth.log file, it simple says:
Quote:
Feb 9 14:19:20 harriet sshd[4134]: Accepted password for xxx from xx.xx.xx.xx port 55105 ssh2
Feb 9 14:19:20 harriet sshd[4134]: pam_unix(sshd:session): session opened for user xxx by (uid=0)
Feb 9 14:19:28 harriet sshd[4046]: pam_unix(sshd:session): session closed for user xxx
The solution I come across to a similar problem is to add a "ClientAwakeInterval" number to sshdconfig, but this (as expected) doesn't fix my problem.
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Jan 10, 2011
I'd like to know some good resources, links, e-books to learn basic Linux system administration scripting. I know how to write very basic BASH shell scripts so I'm still at beginner level. There are so many docs out there that I'd like to narrow down people's opinion's on the best easy to understand resources that are available. Eventually I'd like to learn basic PERL as well.
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Jul 15, 2010
We are facing broken pipe exception while connecting to SMPP gateway through TCP/IP.on RHEL4 It is coming till we restart the application. Below is the exception we are getting. java.net.SocketException: Broken pipe
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Jul 21, 2011
I am building a python script which works same as SMTP protocol. I have build separate functions in that for each command of SMTP, and after this i have integrated all those functions in a new function named as send_mail(so that i don't have to execute every function separately for every command). Now, when i execute the script for the first time it runs successfully, but for the second time it gives the error of "BROKEN PIPE". I really can't make out how the socket is getting closed.
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Nov 16, 2014
I wrote y bash script that opens YouTube playlist using youtube-dl and VLC applications: the output of youtube-dl is the input of VLC. The only problem is VLC needs to be closed after each playlist item unless I get the error message of the operating system:
"ERROR: unable to write data: [Errno 32] Broken pipe".
I understand the reason but I don't know how to resolve it: it is possible to close previous STDIN of VLC without killing the entire VLC process so that a new youtube-dl instance can connect to the same VLC instance? In short this is my question. The problem is detailed here: Downloading and playing videos and subtitles.
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Jul 22, 2010
I'm following the "The Perfect Server - Fedora12 x86_64 [ISPConfig 3]" instructions and I am encountering an error when trying to build the rpm for courier-imap (from page 4 of the HOWTO).
The command I run is:
Code:
rpmbuild -ta courier-imap-4.6.0.tar.bz2
The error is below:
Code:
INFO: LOGIN, user=confmdtest, ip=[127.0.0.1], port=[0], protocol=SMAP1
INFO: LOGOUT, user=confmdtest, ip=[127.0.0.1], headers=0, body=0, rcvd=26, sent=610, time=0
sort: fflush failed: standard output: Broken pipe
[code]....
RPM build errors: Bad exit status from /var/tmp/rpm-tmp.85697 (%build)
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Sep 2, 2010
I am running somes instances of Redis. I want to get Redis stats with following command:
Code:
$ echo "info" | nc <server_IP> <port>
but sometime it returns nothing. The first thing come to my mind is broken pipe or something like this. I always get the result if telnet to Redis and typing 'info' command. I also try pipe viewer to monitor the progress of data but it didn't help:
Code:
$ echo "info" | pv | nc <server_IP> <port>
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Oct 18, 2010
Just upgraded to 10.10, evolution worked the first time but has not worked since. Have tried re installation but no joy. Starting for terminal shows:-
(evolution:16876): Unique-DBus-WARNING **: Error while sending message: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.
It was working in 10.04.
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Jun 11, 2010
I was giving the found the following shell script. I was told it was suppose to ensure only that only one script of Test.sh can run..
However, I get it looks like it has a error when i run it... As i get Test.sh: line 9: kill: (20831) - No such process
what is going on in this script can someone explain it to me... I thought it suppose to work like a singleton for my script creating a file .run-test-sdolan. However, i don't see how or where .run-test-sdolan is create?
sdolan@staging:$ vi Test.sh
#!/bin/sh
MYDIR=`dirname $0`
CONFDIR=$HOME/
code....
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Apr 5, 2011
vi /etc/samba/smb.conf
[samba test]
comment = client
path = /opt/apps/deploy/websites
public = no
writable = yes
[Code]...
Using the bash shell script the above given samba configuration,the script should automatically add these above given entries in the /etc/samba/smb.conf.can any one help me how to edit the file add entries in the config file using shell script.
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Nov 26, 2008
I have a config file that contains:
my.config:
Code:
Now in my bash script, I want to get the output /home/user instead of $HOME once read. So far, I have managed to get the $HOME variable but I can't get it to echo the variable. All I get is the output $HOME.
Here is my parse_cmd script:
Code:
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Apr 10, 2009
my net worked HP printer will not print-broken pipe - this started after I had to switch off the printer at the mains in order to attend to a paper jam. Now it will not print apart from a test page. I am using Fedora 10 and the device info is "hp:/net/Officejet_Pro_L7500?ip=192.168.0.4"
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Apr 3, 2010
I understand that the linux pipe is a buffer and that any data written to it will stay there until it is read, and if the max capacity of the buffer is reached, any additional writes will block (by default).
HOWEVER, the behavior of the pipeline below suggest that the write operations are buffered/cached before ever being written to the pipe on the client side here is write.sh, which creates 1000 byte string and writes it 100 times to stdout... the idea being that it'll block as soon as the 64kb linux pipe size is reached:
[Code]...
This is not what I was expecting: I was expected that once the capacity was reached, any reads would be followed immediately by a write to take advantage of the freed space. Instead, the blocked write operation seems to wait for some random amount of time/space to free until it unblocks and writes.
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Sep 3, 2010
Kde 4.5.1 from 03/09/2010 2100h. python-sip is 4.10.xxx and 4.11.xxx is neded to let things work
python-kde4 and python-kdebase4 wont install
nothing provide python-sip - 4.11 needed by python-kde4-4.5.1.168.1-x86_64
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May 6, 2011
I am very new to shell scripting.How does one pass a command-line parameter to a shell script?for the below program
#/bin/bash
mount -t cifs -o user=ramkannan,password=Linux123@ //10.200.1.125/ramkannan /MT
cd /MT/test
date=`/bin/date "+\%Y-\%m-\%d-\%H-\%M-\%S"`
mysqldump -uroot -pram2@ employeedb > $date.sql
gzip $date.sql
I want to pass parameter for everything,i tried in google and did but iam getting error while passing parameter to all
#/bin/bash
mount -t cifs -o user=$1,password=$2 //10.200.1.125/ramkannan /MT
cd /MT/test
date=`/bin/date "+\%Y-\%m-\%d-\%H-\%M-\%S"`
mysqldump -uroot -pram2@ employeedb > $date.sql
gzip $date.sql
i was getting error while passing parameter to all.
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Aug 11, 2010
I understand that $! is the PID of a command. For example:
Code: #!/bin/bash
myprogram &
echo "PID of myprogram is $!"
I'd like to send the output of "myprogram" to both console and to a log file using the "tee" command but I also want to store the PID of "myprogam". Something like this:
Code: #!/bin/bash
myprogram | tee ./logfile &
echo "PID of myprogram is $!"
The problem is that $! is now the PID of "tee" rather than the PID of "myprogram".
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Aug 21, 2010
I don't quite understand how pipes work in bash. I know that it takes an output from one command as the input in another command. What an output is I can get because it's what the command prints out to the screen. But how do I know what input a command will take? Here is an example I thought would work:
Which gem | rm
Unfortunately it didn't.
Which gem prints out "/usr/bin/gem" so that must be the output right? I thought that was given to rm so it would be "rm /usr/bin/gem" but I was wrong. How do I know what input a command takes?
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Jul 25, 2010
Two processes are communicating through a pipe: A | B. A is writing data faster than B is reading it in. Is there any way to have A limit its writing rate to match B's reading rate?
AFAIK the pipe will get full, and will make A's writing block, waiting for B to read in more data. But is there a way to limit A's writing rate before the pipe fills up? (In a way it's like having a pipe with a really small capacity, but as far as I know pipe capacity is a constant compiled into the kernel.)
Code:
EXAMPLE FOR CLARIFICATION
Right now the command is printing out the following in 1-second intervals:
But with flow control it should print out (again in 1-second intervals):
...since "date" would block on the writing loop due to the slow reading loop.
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Jun 8, 2010
I write a bash script to time some downloads from a server using ftp connection. ( something like: "time ftp 'options' ) I need to count the time for a list of files in a loop and output the result in a file.
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Apr 23, 2010
Unpacking replacement ffmpeg ... dpkg: error processing /var/cache/apt/archives/ffmpeg_5%3a0.5.1+svn20100411-0.0_i386.deb (--unpack): trying to overwrite '/usr/share/ffmpeg/libx264-ipod640.ffpreset', which is also in package libavcodec52 4:0.5.1-3 dpkg-deb: subprocess paste killed by signal (Broken pipe) Errors were encountered while processing: /var/cache/apt/archives/ffmpeg_5%3a0.5.1+svn20100411-0.0_i386.deb E: Sub-process /usr/bin/dpkg returned an error code (1)
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Jul 6, 2011
i had configured mail server in linux. i had configured sendmail in linux client . i have error while sending mail through thunderbird smtp auth error how can i resolv the issue .....
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Feb 22, 2010
Example from zenity:
Code:
#!/bin/sh
(
[code].....
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