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"last/lastb" - Review Login History
This section provides a quick introduction of the 'last' and 'lastb' commands, which allows you to review login history and login attempts. 2023-12-28, ∼176🔥, 0💬
Move All Users to a New System
This section provides a tutorial example on how to move all users to a new Linux system. 2022-10-01, ∼176🔥, 0💬
What Is Swap Space
This section describes swap space, reserved area on the hard disk that extends RAM to form a larger physical memory. 2024-08-17, ∼174🔥, 0💬
Virtual Memory Mapping and Page Table
This section describes virtual memory page, physical memory frame, and page table that maps a page to a frame. 2024-08-17, ∼174🔥, 0💬
"find" - Search for Files
This section provides a tutorial example on how to use 'find' command to search for files in a directory tree. '-name' and '-size' are 2 commonly used search conditions. 2022-10-01, ∼174🔥, 0💬
"split" and "cat" - Split and Join Files
This section provides a tutorial example on how to use 'split' command to split it into chunks and use 'cat' command to join chunks back into a single file. 2022-10-01, ∼173🔥, 0💬
Requirements for Supporting HTTPS on Apache
This section provides a brief summary of requirements on configuring the Apache HTTP Server to support the HTTPS protocol. 2024-04-12, ∼172🔥, 0💬
"wget" - Get Files from the Web
This section provides a tutorial example on how to use 'wget' command to download files from the Web. 'wget' can resume failed downloads. 2023-05-23, ∼172🔥, 0💬
Verify Cache Memory with "cp" Command
This section provides a tutorial example to verify the cache memory usage in the RAM free space using a single 'cp' command. 2024-08-17, ∼170🔥, 0💬
Cron Daemon, Table and Jobs
This section describes what is cron daemon and its related cron tables/jobs. 2022-10-01, ∼168🔥, 0💬
Migrate Old Scripts to New PHP Release
This section provides a tutorial example on how to migrate old PHP scripts to PHP new releases. 2022-10-01, ∼168🔥, 0💬
Install and Manage OpenJDK on CentOS
This section provides a tutorial example on how to install OpenJDK on CentOS 8 systems using 'dnf/yum' as the package manager. 2024-04-12, ∼166🔥, 0💬
/proc/{id}/maps - Process Memory Map
This section describes the pseudo file '/proc/{id}/maps' that represents virtual memory map of a given process. 2024-08-17, ∼165🔥, 0💬
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