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Linux Crontab Command Example - How to backup and load Cron Jobs from a File in UNIX

If you have been using Linux for some time then you might know about cron jobs. They are the scheduler which can be used to automatically start processes in a Linux box. I have worked on many projects which used cron jobs to start the Java process and environment daily or weekly basis. They are similar to Autosys when it comes to scheduling job but cron is a Linux command as opposed to Autosys which is separate application altogether. In Linux, crontab command is used for scheduling and automating jobs or process. You can also use it for loading cron jobs from a file, listing existing cron entries, and editing them. It manages the cron table that is used by the cron daemon in Linux to execute the cron jobs.

5 Free BlockChain Online Courses for Programmers to Learn

Hello guys, how are you doing? hope you all are having a great time and working towards your goal this year. I have been sharing a lot of courses and tutorials in this blog about what to learn in 2019, starting from tools to frameworks, from libraries to programming languages, but one of the most important technology, you can learn in 2019 is the Blockchain technology. It's one of most talked about technology at the moment and considered to be the next big thing after the invention of the internet as they provide a way to attain digital trust on the Internet.

Linux mailx + mutt command Examples - 4 ways to send Email with Attachment from RHEL 5 and 6 Server

One of the common task for programmers working in Linux machine is to send emails, for example, your Java applications are running on Linux like RHEL 5 or RHEL 6 version and you need to send a report of all the clients connecting to your application. An easy way to accomplish this is to write a shell script, which will dump all clients in the log file and then use grep command and generate a report. If you have to grep logs from multiple hosts, you can also use the SSH command to run the same command on multiple hosts. Once you have got the list of clients connecting to your application, you can just send the CSV file to yourself in an email or to your application DL, or a group of users you want to.