Most of us know that history command on Ubuntu shows the list of previously executed commands. This command is really handy either to examine the previously executed command or re-execute the previous command. The default configuration just lists out the entry number and the commands. It doesn’t display the time of execution. This post provides […]

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Often need arises to merge text files. Recently even I encounter similar situation where I had to merge the two JMeter csv result file for some analysis. It took a little while to figure it out. This can easily be done using cat and redirection operator (> OR >>). This command is handy and saves […]

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Note: This post is written by our guest author Boni Satani. Any piece of code or application running on a computer or cloud system is vulnerable to risks and can threaten privacy, security and integrity issues. This fact has gained importance and acceptance by developers round the world and organizations especially dealing with key customers’ […]

We often need command to truncate large log files while working on production server. I have listed few of the commands which are really handy in such case. The command below is the smallest one and most handy. Some people also use the following command. Both of the commands do the same thing, it just […]

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Programmatically sending an email is really a good tool for developer’s paraphernalia. This is really handy when one automates task and wants to get notified by an email for success or failure. Lately I have written Python script to automate some jobs and incorporated method to send email notification. I thought to share this simple […]

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One or the other reason we need configure the Mail Transfer Agent (Mail-server) to send and receive mail on the server. Lately I was working on one personal project where I wanted to send email update about any failure on the Amazon EC2 box. This EC2 box has ubuntu12.04 t1.micro instance for some light weight […]

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