在 ARM、RISC-V、PowerPC 以及大量国产化 SoC 平台中，Device Tree（设备树）已经成为 Linux BSP、驱动适配和板级 bring-up 的核心基础设施。很多系统研发工程师日常会改 DTS、排查 probe 失败、修 GPIO 和中断，但如果只停留在“会改节点”的层面，遇到 deferred probe、overlay ...

The ps command that we all use to list processes has some interesting options that many of us never take advantage of. While the commonly used ps -ef provides a complete listing of running processes, ...

Viewing the content of files and examining access permissions and such are very different options. This post examines a number of ways to look at files on Linux. There are a number of ways to view ...