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• Book Review: “The Book of Strange but True Science”
• diff — Linux command to compare files
• How to self-host your email server with Mailcow
• du — Linux command line to display disk usage per file and directory
• df — Linux command line tool to display disk space usage
• tail — Linux command line to display the end of a file
• grep — Linux command line, search for patterns in files
• history — the Linux command to manage your command line history
• iotop — monitor disk I/O in real time on Linux
• htop — an improved top for Linux

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