admin – Page 25

JShell

October 5, 2025

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JShell is the interactive command-line tool for the Java programming language. It was officially introduced starting with Java 9 (JDK 9) and is a REPL […]

Linux from scratch: basic commands

September 28, 2025

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I use Linux Ubuntu, Linux Ubuntu Server, this tutorial is for those technologies, for other Linux distributions the commands may vary slightly, for macOS the […]

date

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The “date” command tells you the time set on the server, it can be in UTC or GMT. you just have to write date

hosts file

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maps domain names to IP addresses It is located in It is on Linux and macOS systems You can specify IPv6 addresses instead of IPv4 […]

cron

September 27, 2025

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The Cron system in Linux is essentially an automatic task scheduler. Its name comes from the Greek word chronos, meaning time. Cron is the service […]