Filter Salutation in Microsoft Dynamics CRM
In this tutorial, Microsoft Dynamics CRM India experts will teach you how to filter salutation based on Gender field in MS CRM. You can follow the step-by-step guide shared in this post to avail the...
View ArticleHow to Install Paravirtualized CentOS 7 DomU on Xen
This post introduces how to install a paravirtualized CentOS 7 DomU on Xen. The very common way of installing DomU does not work for CentOS 7. A little trick to set the repository and the network used...
View ArticleQEMU/KVM Network Mechanisms
Introduction As we know, network subsystems are important in computer systems since they are I/O systems and need to be optimized with many algorithms and skills. This article will introduce how...
View ArticleHow To Debug Linux Kernel With Less Efforts
Introduction In general, if we want to debug Linux Kernel, there are lots of tools such as Linux Perf, Kprobe, BCC, Ktap, etc, and we can also write kernel modules, proc subsystems or system calls for...
View ArticleA Beginners’ Guide to x86-64 Instruction Encoding
The encoding of x86 and x86-64 instructions is well documented in Intel or AMD’s manuals. However, they are not quite easy for beginners to start with to learn encoding of the x86-64 instructions. In...
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How to Implement Hibernate Envers in an Application
Technology Hibernate Envers is the frameworks for auditing entities. As the name suggests Hibernate Envers is developed on top of Hibernate, it will on Hibernate and Hibernate implemented JPA....
View ArticleHow to print a line to STDERR and STDOUT in OCaml?
In OCaml, how to print a string as a line to STDOUT? That is, the string and the newline character, nicely? And similarly, how to print the line to STDERR? In OCaml, you may print a string with the end...
View ArticleHow to print a line to STDERR and STDOUT in C++?
In C++, how to print a string as a line to STDOUT? That is, the string and the newline character, nicely? And similarly, how to print the line to STDERR? In C++, you may print the string and then 'n'...
View ArticleHow to get the mtime of a file on Linux?
How to get the mtime of a file on Linux from the file’s path? You can use stat to get the file status including the mtime: %y time of last modification, human-readable %Y time of last modification,...
View ArticleHow to count the number of reads in each chromosome in a bam file?
How to count the number of reads in each chromosome in a bam file? The bam file is already sorted by the chromosome names. If the bam file is indexed, you may quickly get these info from the index:...
View ArticleHow to detect whether a file is being written by any other process in Linux?
How to detect whether a file is being written by any other process in Linux? Before a program open a file to processes it, it wants to ensure no other processes are writing to it. Here, we are sure...
View ArticleHow to add a prefix string at the beginning of each line in Bash shell script...
How to add a prefix string at the beginning of each line in Bash shell script on Linux? For example, assume we have a file a.txt: line 1 line 2 I want to have, pre line 1 pre line 2 You may use sed,...
View ArticleHow to print all fields after a certain field with awk on Linux?
How to print all fields after a certain field with awk on Linux? Say, I want to print out all fields after field $3: a b c d e f a b b b a a c d should be transformed to d e f b d You may use a for...
View ArticleHow to get the full request URL in PHP?
How to get the full request URL of the page being processed in PHP? If you are sure the request is a http or https one, and the PHP script is executed according to (e.g. by a load balancer or apache...
View ArticleHow to convert a piece of HTML code to plain text in PHP?
How to convert a piece of HTML code to plain text without leading and ending spaces in PHP? For example, I would like to convert <div> <b>hello</b> world</div> to a string hello...
View ArticleHow to set one task’s CPU affinity quickly?
How to set one task’s CPU affinity quickly? 1, Get this task’s ID # taskset -pc PID 2, Set this task’s CPU affinity # taskset -c affinity ./task Answered by harryxiyou. There is also another format #...
View ArticleHow to tune systems to achieve high performance in virtualization circumstances?
Most time, we need to tune system parameters to achieve better performance but what the general parameters to be tuned in Linux systems. I think you may want to add following parameters to Kernel boot...
View ArticleHow to flush STDOUT buffer in Python?
How to flush the STDOUT buffer in Python so that the content wrote to STDOUT is shown immediately? Call the flush library function on sys.stdout which is the STDOUT: import sys sys.stdout.flush() From...
View ArticleHow to force a checkpointing of metadata in HDFS?
HDFS SecondaraNameNode log shows 2017-08-06 10:54:14,488 ERROR org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode: Exception in doCheckpoint java.io.IOException: Inconsistent checkpoint fields....
View ArticleHow to judge whether its STDERR is redirected to a file in a Bash script on...
Within a Bash script, how to judge whether its STDERR is redirected to a file in Bash on Linux? For example, ./script.sh /tmp/log 2>&1 Can script.sh detect that its STDERR is redirected? Knowing...
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