Tuesday, August 18, 2015

Tuesday, August 04, 2015

Regular Expressions in Linux

What Are Regular Expressions?

A regular expression is a pattern template you define that a Linux utility Uses to filter text. A Linux utility (such as the sed editor or the awk program) matches the regular expression pattern against data as that data flows Into the utility. If the data matches the pattern, it's accepted for processing.

              If the data doesn't match the pattern, it's rejected. The regular expression pattern makes use of wildcard characters to represent one or more characters in the data stream.

Types of regular expressions:
There are two popular regular expression engines:

The POSIX Basic Regular Expression (BRE) engine
The POSIX Extended Regular Expression (ERE) engine

A.     Defining BRE Patterns:
The most basic BRE pattern is matching text characters in a data stream.

Wednesday, July 15, 2015

Error while creating new jobs in DataStage

If you face the error error similar to below can occur when trying to save a newly created job:

Error On CREATE.FILE command
Creating file "RT_CONFIG4817 as type 30, mkdbfile: connot create file
RT_CONFIG4817. Unable to create operating system file "RT_CONFIG4817"

Monday, July 13, 2015

Types of Jobs in DataStage

Server jobs

  • Executed by the DataStage server engine
  • Compiled into Basic
  • Runtime monitoring in DataStage Director
  • No parallel capability

Wednesday, July 08, 2015

What is EPOCH ?

EPOCH is time in seconds since 00:00:00 Coordinated Universal Time (UTC), Thursday, 1 January 1970 ( 1970/01/01 00:00:00 UTC). Or the epoch is Unix time 0 (midnight 1/1/1970), but 'epoch' is often used as a synonym for 'Unix time'. EPOCH time is widely used in every field of IT sector (specially in unix like OS ) where we have to keep difference is generation of something based on time.

Friday, July 03, 2015

Get list of activated tools in Datastage Installation

If we want to check what features have been installed with datastage, we can check it by using LicensingServiceAdmin  tool. This will list down all the tool packs or features including Qualitystage as it comes as a part of datastage.

Tool Location :  {IS_INSTALL_DIR}/ASBServer/bin