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urfave/cli is a declarative, simple, fast, and fun package for building command line tools in Go featuring:

• commands and subcommands with alias and prefix match support
• flexible and permissive help system
• dynamic shell completion for bash, zsh, fish, and powershell
• man and markdown format documentation generation
• input flags for simple types, slices of simple types, time, duration, and others
• compound short flag support (-a -b -c ➡️ -abc)
• input lookup from:
  • environment variables
  • plain text files
  • structured file formats supported via the urfave/cli-altsrc package

More documentation is available in ./docs or the hosted documentation site published from the latest release at https://cli.urfave.org.

Please check the Q&A discussions or ask a new question.

See LICENSE