Google has become a partner of virtualization software maker VMware said that their partnership aim is to make easier for the enterprise Chromebook users to access Windows apps and the Windows desktop into their own platform. Now it has become easier for Chromebook users to experience Windows desktop using VMware’s Horizon desktop as a service (DaaS) which utilizes HTML5 Blast protocol of VMware.VMware will help to the Google’s Chromebooks by providing virtual desktop services to Google’s Chromebooks, which facilitates them to run Windows applications on the pared-down laptops of the Chrome OS.By using different – different VMware virtualization service, companies ... Read More

Microsoft updated “Device Health” for Windows 8.1, aims to develop online security of Banking and Financial account section for users’ better operation. This update will observer and check the PC security status before user getting into the sensitive banking and financial transactions online.Device Health service is a Window based service, provides devices’ health information. After installation of this software, you will be encouraged to accept secure software usage practices to ensure that the certified e-commerce and online banking partners can offer better security, based on the data expected from Device Health.How to install Device Health?To install Device Health update, go ... Read More

In any language or framework one of the most important and main feature is of searching the data. It not only denotes the performance of language but also represents in what manner the data is being stored. So specifically if we take an example of LINUX operating system there comes two of the important commands namely grep and fgrep.Both of these commands are used to search any string or regular expression in file, directory or even in multiple folders. Both these commands executes in such a way that processor starts analysing the target folder or destination and search for the ... Read More

eval is a builtin command of the Bash shell which concatenates its arguments into a single string. Then it joins the arguments with spaces, then executes that string as a bash command. Below is an example of how it works.eval exampleIn the below example we take a string which has some Unix commands built into it and then apply eval to it.$ var="echo n" $ echo $var $ eval $varRunning the above code gives us the following result −echo n nAs you can see, when eval is applied the variable expands it gets executed as a command and no longer ... Read More

A system call is the fundamental interface between an application and the Linux kernel. When a Unix/Linux program does a file I/O, network data transfer or invokes some process which directly or indirectly interact with the low level instructions, then system call is involved. Making these calls usually involves using a library called glibc which contains the functions.ExamplesBelow is a list of some frequently used system calls and their purpose.Sr.NoSystem CallPurpose1chmodchange permissions of a file2chdirchange working directory3forkcreate a child process4unlinkdelete a name and possibly the file it refers toA systems programmer writes program that will not directly make the systems ... Read More

Often it is a requirement to read each of the line from a file using a bash script. There are various approaches to read the lines form a file. In the below example we have first described how to create a sample file and then run a script reading that sample file.Create a file to Read# Open vi Editor vi a_file.txt # Input the below lines Monday Tuesday Wednesday Thursday Friday Saturday Sunday # cat the file cat a_file.txtRunning the above code gives us the following result −Monday Tuesday Wednesday Thursday Friday Saturday SundayUsing Do-WhileIn this approach we use a ... Read More

When we transfer files between Windows and Unix systems, often we come across with issue relating to the end of line character. This is because the EOL character in windows is not recognized as a EOL character in Unix. SO to fix this issue when a file is transferred from Windows to Unix we need to follow one of the below methods.Using dos2unixThe dos2unix command is used to convert the EOL character of windows platform to Unix platform. Most of the Unix system comes with this command pre-installed. Below we see how we can convert the file itself or save ... Read More

The wc command also known as word count command is a fundamental command any Linux user should be aware of. It is mostly used with the l switch to do a line count, but it can actually give count of multiple things with various arguments supplied to it. Below is a list of what are those possible arguments. The we will see examples on each of them.Sr.NoCommandUsage1wc -cDisplay number of bytes2wc -mDisplay number of characters3wc -wDisplay number of words4wc -lDisplay number of lines5wc -LDisplay length of longest lineLets consider the below file for our examples.ubuntu@ubuntu:~$ cat inspire.txt Mastering anything needs ... Read More

Removing directories is a regular process for anyone working on Unix systems.But sometimes we also need to find the directories first and then decide to delete it. One hurdle in deleting the files is to do a recursive deleting because by default Unix systems do not allow deleting of a directory if it is not empty. So in this article we will see how to find and remove directories recursively.Using find and execThe below command first searches for the required directory using the find command then executes the ‘rm’ command to recursively remove the directory using the recursive option as ... Read More

Re-running commands in the command line is a regular task which all of us go through when working on the Unix systems. In the below article we will see various ways how we can rerun the commands we have already executed this helps save time and it helps reasoning longer commands easily without retyping them.Before we get into how to re-execute previous command let's see how we can look at the list of all the commands. There is a command call history which lists down all the executed command for a specific time period configured by the system. Below is ... Read More