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log4j configuration via JVM argument(s)?
...
162
Do you have a log4j configuration file ? Just reference it using
-Dlog4j.configuration={path t...
Maven2: Best practice for Enterprise Project (EAR file)
...ect xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.mycompany</groupId>
&l...
What does `kill -0 $pid` in a shell script do?
... then no signal is sent, but error checking is still performed.
...
kill(2)
$ man 2 kill
...
If sig is 0, then no signal is sent, but error checking is still performed; this
can be used to check for the existence of a process ID or process group ID.
...
...
How to install packages offline?
...$ mkdir /pypi && cd /pypi
$ ls -la
-rw-r--r-- 1 pavel staff 237954 Apr 19 11:31 Flask-WTF-0.6.tar.gz
-rw-r--r-- 1 pavel staff 389741 Feb 22 17:10 Jinja2-2.6.tar.gz
-rw-r--r-- 1 pavel staff 70305 Apr 11 00:28 MySQL-python-1.2.3.tar.gz
-rw-r--r-- 1 pavel staff 25972...
Linux下部署企业级邮件服务器(postfix + dovecot + extmail) - 开源 & Gith...
...件服务器，公司全部员工使用统一的域名，内网IP为：192.168.0.115
操作系统：RHEL5
所用软件列表：
mysql-5.5.20
postfix-2.9.1
courier-authlib-0.62.4.tar.bz2
extmail-1.2.tar.gz
extman-1.1.tar.gz
Unix-Syslog-1.1.tar.gz
perl-GD-2.35-1.el5.rf.i386.rpm...
Add a column to a table, if it does not already exist
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222
You can use a similar construct by using the sys.columns table io sys.objects.
IF NOT EXISTS ...
What is the JavaScript convention for no operation?
...ions (or related discussions or google searches):
AngularJS 1.x, Angular 2+ (Does not seem to have a native
implementation - use your own as shown above), Ember, jQuery, Lodash, NodeJS, Ramda, React (Does not seem to have a native implementation - use your own as shown above), RxJS,
Und...
How to write DataFrame to postgres table?
...
127
Starting from pandas 0.14 (released end of May 2014), postgresql is supported. The sql module n...
How do I get the day of the week with Foundation?
...
216
NSDateFormatter *dateFormatter = [[[NSDateFormatter alloc] init] autorelease];
[dateFormatte...