12-11-2012
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
I use read often in scripts to filter the right part into a variable like:
$ print "abc cde efg" | read k l ; print "k=$k, l=$l"
k=, l=
This works on linux and unix versions I work with. On OSX 10.4 this
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2. Programming
Hi,
Can any one please help me with this. Am struggling hard to get a solution.
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3. Programming
I know how to read and write if i have a forked process with only one child. However what is involved with reading and writing with many forked processes. Say one parent that forks 5 children, and needs to communicate with all 5 in half duplex.
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4. UNIX for Advanced & Expert Users
I have the following code which works on AIX 4.3 but fails at times on AIX 5.3
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cat: 0652-054 cannot write to output. There is no process to read data written to a pipe.
validator="${validator_exe} ${validator_parms}"
cmd_line="${CAT} ${data_file} | ${validator}... (6 Replies)
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5. AIX
Hi Everyone,
The machine I'm working on is an AIX 5.3 LPAR running on a P650. oslevel -r shows 5300-08. I'm trying to take a backup to a SCSI tape drive, which has been working up until this point. I know of nothing that has changed recently to cause this problem. But when I try to take a... (0 Replies)
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6. Shell Programming and Scripting
I have a perl program that I want to read from a file passed as an argument or from a pipe. If their is no pipe or arguments, I want it to output a help message. I am stuck on how to prevent perl from reading from the keyboard if it isn't fed any file names or data from a pipe. The only things I... (4 Replies)
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7. UNIX for Dummies Questions & Answers
We use SAP application cluster on AIX. Communication between 2 of its instances is failing randomly with the following error:
java.net.SocketException: There is no process to read data written to a pipe.
The above error causes a cluster restart if an important communication fails.
Can... (0 Replies)
Discussion started by: RoshniMehta
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8. Shell Programming and Scripting
Hello,
I have an ffmpeg bash script which is working nice and
I need to do the same for other sources.
To create new scripts and to deal with multiple bash files sounds not logical. It is a bit hard to manage for me..
I wondered if it was possible to make my input file as variable.
Then I... (1 Reply)
Discussion started by: baris35
1 Replies
9. Shell Programming and Scripting
I have created a fifo named pipe in solaris, which writes the content of a file, line by line, into pipe as below:
$ mkfifo namepipe
$ cat books.txt
"how to write unix code"
"how to write oracle code"
$ cat books.txt >> namepipe &
I have a readpipe.sh script which reads the named... (2 Replies)
Discussion started by: naveen mani
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10. UNIX for Beginners Questions & Answers
Hi All,
I'm creating a program which reads millions of bytes from the PIPE and do some processing. As the data is more, the idea is to read the pipe parallely.
Sun Solaris 8
See the code below:
#!/bin/sh
MAXTHREAD=30
awk '{print $1}' metadata.csv > nvpipe &
while
do
... (3 Replies)
Discussion started by: mr_manii
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LEARN ABOUT DEBIAN
makepercentrelay
MAKEPERCENTRELAY(8) Double Precision, Inc. MAKEPERCENTRELAY(8)
NAME
makepercentrelay - Build a list of %-relayed domains
SYNOPSIS
makepercentrelay
DESCRIPTION
makepercentrelay reads /etc/courier/esmtppercentrelay.dir and creates /etc/courier/esmtppercentrelay.dat which is a binary database file.
The files /etc/courier/esmtppercentrelay and /etc/courier/esmtppercentrelay.dat specify a list of "percent-hack" domains.
/etc/courier/esmtppercentrelay is a plain text file, containing one domain per line. The Courier mail server loads the contents of
/etc/courier/esmtppercentrelay into memory, so if you have a lot of domains, you will want to use the binary database file. The
makepercentrelay command reads /etc/courier/esmtppercentrelay.dir, which can be either a plain text file itself, or a directory containing
plain text files. All files in the subdirectory are concatenated, and the binary database file is created from the result.
the Courier mail server can use both /etc/courier/esmtppercentrelay and /etc/courier/esmtppercentrelay.dat at the same time. Usually you
would put a couple of your most frequent domains in /etc/courier/esmtppercentrelay, then put the rest in
/etc/courier/esmtppercentrelay.dir, and use makepercentrelay to turn it into a database file.
"percent-hack" domains are a list of domains for which the Courier mail server accepts mail via ESMTP addressed as
"local%percent.hack.domain@local.domain", where "percent.hack.domain" is a domain found in /etc/courier/esmtppercentrelay or
/etc/courier/esmtppercentrelay.dat, and "local.domain" is any domain found in /etc/courier/locals. The Courier mail server removes the
local domain, and rewrites the address as "local@percent.hack.domain", then attempts to deliver it.
The percent hack applies only to mail received via ESMTP. The Courier mail server does not check this list of domains if the message is
received via any other way (such as by running /usr/bin/sendmail directly from the command line). "percent.hack.domain" would likely to be
a domain that the Courier mail server knows how to handle via some other means. It might be an entry in /etc/courier/aliases, or an entry
in /etc/courier/esmtproutes.
SEE ALSO
esmtpd(8)[1], makealiases(8)[2].
AUTHOR
Sam Varshavchik
Author
NOTES
1. esmtpd(8)
[set $man.base.url.for.relative.links]/esmtpd.html
2. makealiases(8)
[set $man.base.url.for.relative.links]/makealiases.html
Courier Mail Server 08/30/2011 MAKEPERCENTRELAY(8)