common Commands

Control file permissions with Umask. Restrict read, write, and execute access for newly created files. Free online tool, no registration required.

Disconnect filesystem partitions with Umount Filesystem, making data inaccessible. Unmount various devices and network shares easily. Free online tool, no registration required.

Remove alias commands with unalias. Manage shell aliases in bash and other shells using command line. Free online tool, no registration required.

Generate system information with Uname. Quickly retrieve kernel details, hardware architecture, and operating system name. Free online tool, no registration required.

Extract archive files quickly with unar. Manage and access the contents of compressed files with this command line utility. Free online tool, no registration required.

Hide mouse cursor automatically with Unclutter. Eliminate screen clutter and improve focus on Linux and other platforms. Free online tool, no registration required.

Format code with Uncrustify, a powerful source code formatter supporting C, C++, C#, D, Java, and Pawn. Enhance code readability instantly. Free online tool, no registration required.

Convert spaces to tabs with Unexpand, a command-line tool for text formatting. Effortlessly manage whitespace and create consistent file formatting. Free online tool, no registration required.

Improve directed graph layout with Unflatten. Adjust aspect ratio, refine graph visualization and enhance readability. Free online tool, no registration required.

Simulate the Matrix digital rain effect with Unimatrix. Customize colors, speed, and character sets. Command-line tool, free online tool, no registration required.

Filter duplicate lines with Uniq Command, enabling easy data cleaning and analysis. Identify unique entries from files. Free online tool, no registration required.

Synchronize files easily with Unison, a powerful bidirectional file synchronization tool. Keep your directories in sync across platforms. Free online tool, no registration required.

Convert units easily with Units, the powerful command-line tool. Perform accurate measurements and conversions online. Free online tool, no registration required.

Unlink file quickly with Unlink Command. Remove file links, manage filesystem references and free up storage space. Free online tool, no registration required.

Decompress LZMA files quickly with Unlzma. Use this tool to decompress LZMA archives via XZ. Free online tool, no registration required.

Extract archives easily with Unp. Unpack any archive format, including zip, tar.gz, and rar. Free online tool, no registration required.

Extract RAR archives with UnRAR. Easily manage compressed files and access their contents efficiently. Free online tool, no registration required.

Remove shell variables with Unset. Easily delete variables and functions in your shell environment. Free online tool, no registration required.

Control shell loop execution with the 'until' command. Easily repeat commands until a zero return value. Free online tool, no registration required.

Decompress XZ files effortlessly with Unxz. Extract archives quickly and efficiently on any system using this command alias. Free online tool, no registration required.

Extract files from zip archives with Unzip command. Decompress and manage zipped files quickly and efficiently. Free online tool, no registration required.

Decompress Zstandard files with Unzstd, an alias for the powerful Zstandard compression tool. Streamline your data workflows with this free online tool, no registration required.

Serve files with Updog, a lightweight HTTP server for uploads and downloads. Quickly share files and directories with basic auth and SSL support. Free online tool, no registration required.

Manage packages easily with Upt Package Manager, a unified interface for various operating systems. Install, update, and remove packages effortlessly. Free online tool, no registration required.

Control system uptime with Uptime. Monitor system boot time, logged-in users, and average load. Free online tool, no registration required.

Compress executables easily with UPX Compressor. Reduce file sizes and optimize applications for distribution. Free online tool, no registration required.

Display users logged into the system with the Users command. Check current user sessions and improve system monitoring. Free online tool, no registration required.

Control delay execution with usleep. Microsecond time delay tool for scripts and commands, offering precision timing control. Free online tool, no registration required.

Control SQL databases with usql. Connect to various databases, execute SQL commands, and manage database schema. Free online tool, no registration required.

Decode uuencoded files with Uudecode. Easily convert uuencoded data back to its original format. Free online tool, no registration required.