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What is Autosys? In simple terms, Autosys is an automated job control system for scheduling,monitoring and reporting jobs. The jobs can reside on an Autosys configured machine attached to a network. Before getting more details about autosys, let's try to understand some basics terms of it. Let's understand, What is meant by Job on a system? The job is nothing but a particular activity on a system. For Example, I want to copy a particular file on Unix/Windows machine from one directory to another one. This is considered as activity/task. It involves a manual process of executing a command on that machine. But using (cron job or Windows-AT) we can automate it based on time. What is Cron tab & Windows-AT? Explain about them? One may have a question why we require a third party software when this can be achieved through cron Utility in Unix. Cron indeed a feature available in Unix but still it lacks some of the functionalities like job dependencies, run window,calendar features(You will learn about these in coming sessions) Why do we need Autosys? As we have discussed above, most basic job scheduling is done using Unix - cron (or windows - AT), which is time-based. It will fire the job based on the clock. However, in real business, you need to fire jobs not just based on scheduled time, but also based on events (like an arrival of a file), and, based on the success or failure of other jobs. Autosys is a total job scheduling solution that allows you to define these events, dependencies, time schedules, alerts, etc, making it a complete data center automation tool. A reliable, easy to use the system that enables the user to completely manage their entire Job Processing requirements. This is a product from Computer Associates. What is an Autosys-job? An autosys job can be, A single command executed on a validated machine, (command, in turn, could have multiple tasks). Autosys-jobs can

Create-Modify-Delete-users-in-Linux-Unix One of the day to day activity for any Linux/UNIX admin is to create new user and modify their attributes as per the end user requirements. Below is the list of Linux commands that we use for user administration. useradd ---- For adding a new user usermod---- For modifying user attributes userdel------ For removing user from Linux machine.

Experts give us their reactions to the Bash vulnerability in Linux, Unix and Mac. Hundreds of millions of computers are potentially affected by Shellshock, a new bug found in Linux, Unix and Mac. The flaw is related to the command processor called Bash, short for Bourne again shell, which is common to Linux, Unix and Mac systems. So what does this all mean for us?

PHP development is most popular to develop world-class web applications, e commerce solutions, community wb portals, blogs and many more. PHP is most compatible and scalable across multiple platforms like Windows, Unix and Linux. PHP is simple, high customizable and provides plenty of interactive features to its PHP developers.

The kernel was named as Linux kernel. By collaborating this kernel with the GNU applications, a complete UNIX like os was developed and that is called Linux OS.

Hard linking a file Let's take a case, We are working on updating particular software packages on Linux machine. And unexpectedly, a couple of important files got deleted by the administrator. During this situations, hard linked files will come handy as a backup. Note: Generally, the hard link file is used for the backup purpose of small and important configuration files like /etc/passwd, /etc/shadow etc. Command Syntax: ln actual-file hard link-file Example: [root@sys2 ~]# ln abclearn hardln [root@sys2 ~]# ls -l hardln -rw-r--r--. 2 root root 16 Jan 28 19:55 hardln [root@sys2 ~]# ls -l abclearn -rw-r--r--. 2 root root 16 Jan 28 19:55 abclearn

Ezeelogin is an SSH gateway software solution, that enables enterprises to deploy their own custom SSH jump box in minutes and to know more, do visit: