What are useful CLI tools for Linux system admins

System administrators (sysadmins) are responsible for day-to-day operations of production systems and services. One of the critical roles of sysadmins is to ensure that operational services are available round the clock. For that, they have to carefully plan backup policies, disaster management strategies, scheduled maintenance, security audits, etc. Like every other discipline, sysadmins have their […]
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How to access Linux command cheat sheets from the command line

The power of Linux command line is its flexibility and versatility. Each Linux command comes with its share of command line options and parameters. Mix and match them, and even chain different commands with pipes and redirects. You get yourself literally hundreds of use cases even with a few basic commands, and it’s hard even […]
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How to diff and merge files or directories on Linux

There are many cases where you want to compare and/or merge two files or directories. For example, you may want to compare two distinct backup snapshots; merge two different versions of a document; diff two configuration files for troubleshooting, etc. While version control systems can handle this kind of situations easily, it is probably an […]
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