In this article, we will discuss the different iterator behaviors in java.
Iterators in Java are mainly used to traverse through the collection elements. During traversal, we can perform any access kind of operations like searching, copying, accessing the value with its key etc. But operations that involves modification of collection like adding new values, deleting an item or updating the value for an already existing element may throw an exception depending upon the iterator the collection has implemented. The iterator implementations are categorized into two types
Here let’s discuss few ansible modules using adhoc commandline.
Before getting into the topic of “ how to run Linux commands on Ad Hoc commandline ?”, let me show you how these system commands are executed in Linux commandLine.
For example, let’s take up a question-
How to check whether httpd daemon is active or not in linux command line ?
In Linux Commandline, we use systemctl command to check the daemon status..
Syntax:- systemctl status daemonName
Example :- systemctl status httpd
An Another way.
Syntax :- systemctl is-active daemonName
Example :- systemctl is-active httpd
ansible-doc is like a man/help command in ansible.
Running adhoc commands with ansible
An ad hoc command is a way of executing single ansible task.
Ad hoc command execution are runtime based ; which means that it is a command line execution and is not saved in storage (File).
Ad hoc commands are very useful for performing simple tasks with ansible in no time.
Command line Syntax:-
ansible hostname –m module -a module arguments -i inventoryfile
The hostname argument is used to specify the managed hosts on which the ad hoc command should execute.
The -m option takes the…
Ansible is an open source automation platform, which automates system administration tasks like package installation, patching and user management activities. In addition, it supports intra service orchestration cloud provisioning, and many other tasks.
So you think right.
Ansible is a configuration management tool that automates a system task, but it’s not the limit. It can also check the system state behavior. So here the term system state means already the package is available. Again, you’re trying to install the same package which is meaningless. Right ??
Or you can say, the services are already active where again you are trying…