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Created by magnum on September 11, 2012 11:59:43    Last update: September 11, 2012 11:59:43
Exerpt from bash documentation. HISTORY EXPANSION The bash shell supports a history expansion feature that is similar to the history expansion in csh. This feature is enabled by default for interactive shells, and can be disabled using the +H option to the set builtin command. Non-interactive shells do not perform history expansion by default. History expansions introduce words from the history list into the input stream, making it easy to repeat commands, insert the arguments to a previous command into the current input line, or fix errors in previous commands quickly. History expansion is performed immediately after a complete line is read, before the shell breaks it into words. It takes place in two parts. The first is to determine which line from the history...
Created by nogeek on November 03, 2010 20:52:49    Last update: November 23, 2011 08:54:44
My problem is simple: in my XML data, a timestamp is provided as a long integer (number of milliseconds since the "the epoch"). When I do XSLT, I want to display it as a readable string, such as "Mon Nov 01 18:08:48 CDT 2010". After hours of struggle, I found: It's not so easy to get the job done with JDK 1.6 There are tons of garbage on the web in this space (suggestions, code snippets that simply don't work) Simple Xalan extension functions was the only resource that's somewhat informative. Even there some of the examples don't work. Below is a list of what worked and what didn't. This works: <xsl:stylesheet version="1.0" xmlns:xsl="h... This does not (providing long value to Date constructor): <xsl:stylesheet version="1.0" xmlns:xsl="h......
Created by Fang on November 10, 2011 09:26:12    Last update: November 10, 2011 09:26:12
Syntax highlighted XML schema for JSF 2.0 Application Configuration Resource File ( faces-config.xml ). Almost 3000 lines! <?xml version="1.0" encoding="UTF-8"?> <xsd:sch...
Created by Fang on August 23, 2010 22:55:58    Last update: August 24, 2010 15:45:04
The tags XML flow control tags are exactly the same as their Core flow control equivalents, except that the test condition with a boolean EL expression is replaced by the select condition with an XPath expression. In the case of the forEach tag, the items attribute is replaced with the select attribute. In a test condition, the XPath expression is evaluated to a boolean value by the rules of the XPath boolean() function, which converts its argument to a boolean as follows: a number is true if and only if it is neither positive or negative zero nor NaN. a node-set is true if and only if it is non-empty. a string is true if and only if its length is non-zero. an object of...
Created by Dr. Xi on June 20, 2010 14:35:17    Last update: June 20, 2010 14:35:17
This XML signature validator comes from the Apache XML Security project. It validates the signature according to the core validation processing rules . It does not verify that the key used to generate the signature is a trusted key. You can override the KeySelector class to make sure that the signing key is from a trusted store. import javax.xml.crypto.*; import javax.xml.cry...
Created by Dr. Xi on February 24, 2010 21:13:05    Last update: February 24, 2010 21:19:54
This program demonstrates the use of the java.nio package to implement a single thread echo server. import java.io.IOException; import java.net.Ine...
Created by Dr. Xi on February 09, 2010 04:54:10    Last update: February 09, 2010 04:54:10
Use this to connect to oracle RAC (Real Application Cluster): jdbc:oracle:thin:@(DESCRIPTION=(LOAD_BALANCE=on) ... From Oracle Database JDBC Developer's Guide : Specifier Supported Drivers Example Oracle Net connection descriptor Thin, OCI Thin, using an address list: url="jdbc:oracle:thin:@(DESCRIPTION= (LOAD_BALANCE=on) (ADDRESS_LIST= (ADDRESS=(PROTOCOL=TCP)(HOST=host1) (PORT=1521)) (ADDRESS=(PROTOCOL=TCP)(HOST=host2)(PORT=1521))) (CONNECT_DATA=(SERVICE_NAME=service_name)))" OCI, using a cluster: "jdbc:oracle:oci:@(DESCRIPTION= (ADDRESS=(PROTOCOL=TCP)(HOST=cluster_alias) (PORT=1521)) (CONNECT_DATA=(SERVICE_NAME=service_name)))" Thin-style service name Thin "jdbc:oracle:thin:scott/tiger@//myhost:1521/myservicename" LDAP syntax Thin "jdbc:oracle:thin:@ldap://ldap.example.com:7777/sales,cn=OracleContext,dc=com" Bequeath connection OCI Empty. That is, nothing after @ "jdbc:oracle:oci:scott/tiger/@" TNSNames alias Thin, OCI OracleDataSource ods = new OracleDataSource(); ods.setTNSEntryName("MyTNSAlias");
Created by Dr. Xi on September 29, 2008 23:05:12    Last update: September 29, 2008 23:06:16
These variables are set or used by the Unix shell to modify its behavior. Variable Description ENV=file Name of script that gets executed at startup; Usually, ENV=$HOME/.kshrc FCEDIT=file Editor used by fc (fix command) command. If $FCEDIT is not defined, use $EDITOR, otherwise use the default (vi or ed). FPATH=dirs Directories to search for function definitions; undefined functions are set via typeset -fu . FPATH is searched when these functions are first referenced. HISTFILE=file File in which to store command history. Default is $HOME/.sh_history for Korn shell, $HOME/.bash_history for Bash. If not set, history is lost after logout. HISTSIZE=n Max number of commands to keep in history. HOME=dir Home directory; set by login from passwd file. IFS='chars' Internal field separators. Default is space, tab, and...
Created by Dr. Xi on September 04, 2008 19:14:06    Last update: September 04, 2008 19:14:22
import java.sql.*; import java.io.*; pub...