This is script is particularly useful for keeping an eye on Linux VPS ( Virtual Private Servers) with small amount of memory, say of about 1GB (approximately 990MB). In this article, we will share a small but useful shell script to send an alert email to one or more system administrator(s), if server memory is running low. One of the critical components of a server is memory ( RAM), it greatly impacts on overall performance of a system. You can write scripts to help you keep up with what’s unfolding on a server. You can write scripts to automate tasks, for instance daily back ups, system updates etc create new custom commands/utilities/tools and beyond. This offers you a reliable and effective means of system administration. You can write commands in a file known as a shell script and execute them collectively. A powerful aspect of Unix/Linux shell programs such as bash, is their amazing support for common programming constructs that enable you to make decisions, execute commands repeatedly, create new functions, and so much more.
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