dinghaibin

Display user and group identity information. Shows real and effective user ID, group ID, and supplementary groups for the current process.

Wrap long lines of text to a specified width. Use for formatting text files to fit within column limits.

Display, set, and manage environment variables in shell sessions. Use when inspecting or modifying the runtime environment.

Extract specific fields or columns from text files using delimiter-based parsing. Use when you need to select columns from CSV, TSV, or delimited data.

Encode and decode base64 data. Support for standard and URL-safe variants.

Display amount of free and used memory in the system. Use for monitoring memory usage and diagnosing performance issues.

Perform clear-tool operations from the command line.

Perform cal-tool operations from the command line.

Create and manage command aliases in shell environments. Define shortcuts for frequently used commands.

Create and manage short URLs with custom aliases and tracking. Use when user needs to shorten long URLs, create memorable custom links, track click statistic...

Capture screenshots and screen recordings. Use when user needs to take screenshots, record screen activity, capture windows, or create screen recordings for...

Display and format date and time values from the command line. Use when you need to get the current date, format timestamps, or calculate date differences.

Display or set the system hostname. Use for identifying the current machine on a network and configuring system identity.

Backup and restore files with compression and encryption. Use when user needs to backup important files, create scheduled backups, sync folders, encrypt sens...

List, test, and extract files from ZIP archives. Use when you need to decompress or inspect ZIP file contents.

Return exit code 0 indicating success. Use as a no-op command that always succeeds in scripts and conditional expressions.

Perform mathematical calculations from the command line. Arithmetic, trig, and unit conversion.

Download videos from YouTube and other video platforms. Use when user needs to download videos for offline viewing, extract audio from videos, or save video...

Terminate processes by sending signals. Use for stopping unresponsive programs, managing background tasks, and process lifecycle control.

Count lines, words, characters, and bytes in one or more files with per-file and total summary. Use for document statistics, code analysis, and data volume e...

Translate or delete characters from input streams. Use for character substitution, deletion, and squeezing repeated characters.

Read from stdin and write to both stdout and files. Use for saving pipe output while still displaying it on screen.

Show system uptime, load average, active user count, and boot time. Use for system health checks, monitoring, and diagnostics.

Display user group memberships on the system. Shows all groups a user belongs to for permission auditing and access control verification.

Remove files and directories permanently. Use for file deletion, cleanup, and disk space management.

Download files from the web via HTTP/HTTPS/FTP with resume support, recursive mirroring, rate limiting, and progress feedback.

Format and beautify text output for better readability. Use for cleaning up structured data and aligning columns.

Monitor web pages for content changes with CSS selector targeting, change detection via hashing, and notification integration. Use for price tracking, conten...

Count words in text — total, unique, per-line, with frequency analysis. Useful for readability metrics, content analysis, translation estimation, and documen...

Count characters in text input — total, non-whitespace, CJK, and Unicode-aware character counts. Useful for text analysis, content length limits, and i18n va...

Apply data transformations like case changes, encoding conversion, and format conversion. Use for text processing and data cleaning.

Display directory structure as an indented tree. Use for visualizing folder hierarchies and project structure.

Display real-time view of running processes. Use for system monitoring, performance debugging, and resource management.

Measure execution time of commands. Use for performance benchmarking, script optimization, and timing analysis.

Convert text to speech audio files. Use when user needs to create audio from text, generate voiceovers, create podcasts, or convert articles to audio.

Evaluate conditional expressions for file testing, string comparison, and arithmetic checks. Use for shell script conditionals.

Process text templates with variable substitution. Use for generating dynamic content from template files.

Format data into aligned table columns. Use for displaying structured data with organized rows and columns.

Concatenate and display files in reverse line order (last line first). Use for viewing log files from newest entries and reversing file content.

Monitor system metrics like CPU, memory, disk, and network. Use when user needs to track server performance, set up alerts for high resource usage, monitor u...

Identity verification utility — validate current user against expected roles, check sudo access, and audit user capabilities. Extended whoami for security an...

Package and compress files into ZIP archives with configurable compression levels, password protection, directory recursion, and cross-platform compatibility...

Create hex dumps of binary files, convert hex dumps back to binary, and perform bit-level analysis and patching. Essential for reverse engineering, binary an...

Validate data formats including JSON, email, URL, file paths, IP addresses, and phone numbers with detailed error reporting and batch processing.

Set or display file creation permission mask. Use for controlling default file permissions on new files and directories.

Convert spaces to tabs in text files. Use for consistent indentation and reducing file size by replacing spaces with tabs.

Monitor system metrics like CPU, memory, disk, and network. Use when user needs to track server performance, set up alerts for high resource usage, monitor u...

Display the last lines of files. Use for monitoring log files, checking recent entries, and following file growth in real-time.

Display detailed file or filesystem status information. Use for checking file permissions, sizes, timestamps, and metadata.

Sort lines of text alphabetically or numerically. Use for data organization, list management, and text file preparation.

Split files into smaller pieces by size, line count, or number of chunks. Use for breaking large files into manageable parts.

Send desktop notifications from command line scripts and automated tasks. Use for alerts, reminders, and process completion notifications.

Randomly shuffle lines of text input. Use for random sampling, data randomization, and selection tasks.

Create directories and directory hierarchies. Use for organizing files, setting up project structures, and managing filesystem layout.

Compute SHA-1 160-bit cryptographic hash values. Use for file integrity checking and data fingerprinting.

Securely copy files between local and remote hosts over SSH. Use for file transfers, remote backups, and deployment tasks.

Count lines, blank lines, code lines, and comment lines in text files. Useful for code statistics, log file sizing, and document analysis.

Generate secure passwords and passphrases. Use when user needs to create strong passwords, generate secure tokens, create PINs, or generate memorable passphr...

Comprehensive date and time manipulation toolkit supporting multiple formats, timezone conversions, calendar calculations, natural language parsing, and date...

Compute SHA-256 cryptographic hash values for files and text. Use for secure data verification and integrity checks.

Concatenate and display file contents to standard output.

Generate sequences of numbers with configurable start, end, and increment values. Use for creating numbered lists, loops, and ranges.

Stream editor for filtering and transforming text using scripts. Use for find-and-replace, text manipulation, and batch file editing.

Trace network path to a destination host. Use for network diagnostics, latency analysis, and routing path discovery.

Perform clipboard-tool operations from the command line.

Build and execute command lines from standard input — batch process arguments, parallel execution, argument substitution, and delimiter control.

URL-encode or decode text for safe transmission in URLs and query strings, with support for form data, partial encoding, and batch file processing.

View file contents with interactive scrolling and search. Use for reading log files, code, and large text documents with pagination.

Join lines of text from multiple files based on a common field. Use for relational data operations similar to SQL JOIN on text files.

Number lines of text files, showing line numbers alongside content. Use for reference, indexing, and code line numbering.

Display network connections, routing tables, and interface statistics. Use for network diagnostics and monitoring.

Read and write data across network connections using TCP or UDP. Use for network debugging, port scanning, and data transfer.

Move or rename files and directories. Use for file organization, relocation, and renaming operations.

List directory contents with detailed file information. Use for browsing files, checking permissions, and examining directory structure.

Convert Markdown text to HTML and other formats. Use for documentation generation, content formatting, and text transformation.

Create empty files or update file timestamps. Use for file creation, timestamp management, and build system operations.

Convert between Unix timestamps and human-readable dates. Use for time conversion, log analysis, and date arithmetic.

Schedule and run recurring tasks on Linux/Unix systems. Use when user wants to set up cron jobs, scheduled backups, periodic data sync, automated reports, or...

Display comprehensive system hardware and software information. Use for diagnostics, inventory, and system profiling.

Change file permissions using symbolic or numeric modes.

Compute MD5 cryptographic hash values for files and text. Use for file integrity verification and checksum validation.

Analyze log files to extract insights, errors, and patterns. Use when user needs to debug application errors, find patterns in server logs, analyze access lo...

Transfer data using HTTP, HTTPS, FTP protocols. Test APIs and download files.

Generate universally unique identifiers (UUIDs) in versions v1, v4, v5, v7, and nil format, with bulk generation and namespace-based deterministic IDs.

Convert and inspect ASCII character codes and text encodings.

Extract data from websites and APIs for analysis. Use when user needs to collect product prices from e-commerce sites, gather news articles, extract structur...

Work with Notion databases, pages, and APIs. Use when user needs to create, read, update, or delete Notion pages and databases; automate Notion workflows; sy...

Parse, aggregate and process RSS/Atom feeds. Use when user wants to track multiple RSS feeds, create personalized news digest, monitor blog updates, or build...

Create and manage Telegram bots. Use when user wants to build a Telegram bot for notifications, automation, customer support, group management, or interactiv...

Compute SHA family hash values for file integrity verification. Use for checksums, data validation, and security verification.

Get current weather and forecasts. Use when user needs to check current weather, get forecast for travel planning, or monitor weather conditions.

Report or filter repeated lines in sorted text. Use for deduplication, frequency counting, and data cleanup.

Securely connect to remote systems via the SSH protocol. Use for remote server management, file transfer, and tunneling.

Create hard and symbolic links between files. Use for file referencing, shortcuts, and directory organization.

Execute commands with superuser privileges. Use for system administration tasks requiring elevated permissions.

Display and manage network interfaces, connections, and routing information. Use for network diagnostics and configuration analysis.

Convert data between hexadecimal and other formats. Use for debugging binary data, examining file headers, and working with hex dumps.

Display file contents in hexadecimal and ASCII format. Use for binary file analysis, forensic examination, and low-level data inspection.

Compute cryptographic hash values of files and text. Use for verifying file integrity, checksums, and data validation.

Display the first lines of files. Use for quickly previewing file contents, checking headers, or sampling data.

Search text files for lines matching a pattern using regular expressions. Use for log analysis, code searching, and data filtering.

Useful Git commands for repository management. Use when user needs to manage git repositories, create branches, view history, stash changes, or automate git...

Simple text formatting and reflow tool. Use for reformatting paragraphs, removing extra whitespace, and cleaning up text files.

Create and extract tar archives with optional compression. Use for file bundling, backup, and distribution.

Locate the full path of executable commands in the system PATH. Find command locations, verify installation, and resolve command conflicts.

Repeatedly output a string (or 'y' by default) for automated scripts, batch confirmation, and pipeline input generation.

Create and manage automation workflows for repetitive tasks. Use when user needs to schedule periodic data sync, chain API calls, set up triggered actions, b...

Generate random numbers, passwords, and strings with configurable length and character sets. Use for security tokens, testing data, and randomization.

Perform cron-tool operations from the command line.

Sort lines of text files alphabetically or numerically. Use for data preparation, list organization, and output formatting.

Delay execution for a specified amount of time. Use for timing in scripts, waiting between operations, and scheduling delays.

Perform chown-tool operations from the command line.