Learn how to use essential Linux file management commands—cat, cmp, diff, file, and find—including their syntax, key options, and practical examples such as concatenating files, comparing contents, displaying file types, and searching directories, all illustrated with clear code snippets and screenshots.
This guide walks through the most common Linux file‑viewing commands—cat, tac, head, tail, more, and less—detailing their purpose, syntax, useful options, arguments, and practical examples to help you navigate and inspect file contents efficiently.
This guide walks through essential Linux commands for viewing file contents—head, tail, more, less, and cat—detailing their syntax, common options, and practical examples for extracting specific lines, paging through output, and combining with other tools.
This guide introduces ten commonly used Linux command‑line tools—cat, less, head, tail, wc, grep, find, locate, sort, and uniq—explaining their purpose, basic syntax, and practical examples for efficiently inspecting and processing text files.
After rebuilding its transaction system in 2020, 得物 progressed from the basic CAT monitoring tool to OpenTracing with Prometheus, and finally adopted OpenTelemetry to unify metrics, traces, and logs via a custom vmagent‑Kafka‑Flink pipeline, dynamic sampling, and extensible javaagents, positioning the platform for a performance‑analysis‑driven future.
Learn five practical Linux techniques—using shell redirection, built‑in commands, /dev/null with cat/cp/dd, echo, and truncate—to clear a file's contents without deleting the file, each with clear examples and explanations.
Learn how to efficiently split large files into smaller parts using the Linux split command and then recombine them with cat, covering syntax, practical examples, and helpful options for both operations.
This guide explains how to use the Linux split command to divide large files into smaller parts and the cat command to concatenate those parts back together, including syntax, practical examples, and help options for efficient file transfer and management.
This guide explains why large files often need to be split on Linux for network transfer, demonstrates how to use the split command with various options and examples, and shows how to recombine the pieces efficiently using the cat command.
This guide explains why large files often need to be split on Linux for easier transmission, demonstrates how to use the split command with various options and examples, and shows how to recombine the pieces efficiently using the cat command.
Learn how to efficiently split large files into smaller chunks and recombine them on Linux using the split and cat commands, with detailed syntax options, practical examples, and tips for handling line counts, byte sizes, numeric suffixes, and progress monitoring.
This guide explains why large files often need to be divided for network transfer on Linux, and provides step‑by‑step commands and options for using the split utility to cut files into smaller pieces and the cat command to recombine them efficiently.
This case study outlines iQIYI's LEDAO middle‑platform monitoring challenges, evaluates open‑source solutions, details the selection and customization of CAT, and presents deployment, integration, health‑check, and alerting enhancements that now support over 100 microservices across multiple regions.
This guide walks you through essential Linux commands—more, less, cat, head, and grep—detailing their parameters, key actions, and practical examples for efficiently filtering and navigating large log files during development and operations.
To meet the LEDAO platform’s need for rapid anomaly detection, full‑stack observability, and reliable alerting across more than 100 microservices, iQIYI evaluated OpenFalcon, Prometheus and CAT, selected CAT, deployed separate mainland and overseas clusters, added configurable access, health‑check and integrated alert channels, enabling five‑minute service onboarding, near‑zero‑intrusion instrumentation, and real‑time business‑level monitoring.
This guide introduces essential Linux commands—cat, more, less, head, tail, and grep—for viewing and searching file contents, explaining their options, typical usage examples, and key differences to help users efficiently navigate and inspect files from the terminal.
This guide introduces the most useful Linux text‑viewing commands—including cat, tac, more, less, head, tail, sort, sed, uniq, and vi—explaining their basic syntax, common options, and practical examples for efficient file inspection and manipulation.
EMonitor, Meituan’s unified monitoring platform, extends CAT’s concepts with real‑time 10‑second aggregation, richer metric types, advanced dashboards, and seamless integration across IaaS, PaaS, and application layers, illustrating the evolution from log‑based monitoring to a comprehensive, proactive observability system.
This article details Ctrip's implementation and performance optimization of the CAT application monitoring system, covering its deployment, thread‑model redesign, client‑side computation offloading, double‑buffered reporting, and string handling improvements that reduced CPU usage and GC pressure.
This guide explains how to use fundamental Linux commands—cat, tac, nl, more, less, head, and tail—to view file contents, display line numbers, navigate pages, and filter output, complete with syntax, options, and practical examples for each tool.
This article compares Meituan’s in‑house EMonitor with the open‑source CAT platform, outlines their core monitoring models, sampling pipelines, custom metrics and integration capabilities, and traces the evolution of monitoring stages from log‑based to intelligent root‑cause analysis.
This guide introduces essential Linux commands for viewing and manipulating text files—including cat, tac, more, less, head, tail, sort, sed, uniq, and vi—explaining their basic usage, common options, and practical examples for effective command‑line text handling.
This article introduces CAT, a Java‑based open‑source distributed real‑time monitoring system, covering its origins, design goals, architecture, message processing pipeline, instrumentation model, and how it achieves high availability, scalability, and low‑latency analytics for large‑scale internet services.
