The Examples Book
Appendices
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Tools

    • Anvil
      • Anvil Setup Roadmap
      • Helpful ACCESS Links
      • Getting Started with Anvil
      • VSCode (Streamlit)
      • VSCode (Flask)
      • Jupyter Lab
      • GPU
    • GitHub
      • GitHub CLI
      • GitHub Desktop
      • GitHub on Anvil
      • Other Setup
      • Terminology
      • Workflows
    • Matlab
      • Training
    • Perl
      • Perl Books
    • PowerBI
      • PowerBI Access
    • Python
      • Introduction to Jupyter
      • Basics of Programming
      • Indentation in Python
      • Classes
        • Flights Dataset Example
        • Flight Dataset Example 2
      • Control Flow
        • NOAA Dataset Example
      • Introduction: Lists, Tuples, Dictionaries
        • NOAA Dataset Example
      • Basics of Exploratory Data Analysis (EDA)
        • Vehicles Dataset Example
        • WHIN Dataset Example
      • Filtering and Selecting
        • Flight Dataset
      • Data Visualization with Matplotlib
        • Vehicles Dataset Example
      • Data Visualization with Plotly
      • Data Visualization with Seaborn
      • Writing Functions in Python
        • NOAA Dataset
        • Elections Dataset
        • WHIN Dataset
        • Flight Dataset Example
      • Pandas Series
      • Writing Scripts in Python
      • Handling Dates and Times in Pandas
      • Applying Aggregate Functions in Pandas
        • NOAA Dataset
        • WHIN Dataset
        • Flight Dataset
      • Reshaping Data in pandas
      • Data Cleaning: Handling Missing Data
      • Data Transformations
        • WHIN Dataset
    • R
      • Variables
      • Logical Operators
      • Lists and Vectors
      • data.frames
      • Reading and Writing Data
        • Election
      • Control Flow
      • Writing Functions
        • Olympics
        • Death Records
        • Beer
        • Election
        • Airports
      • R Base Functions
        • Iris
        • Airports
        • Ice Cream
        • Olympics
        • Election
        • Death Records
        • Beer
        • Grocery
        • Iowa Liquor
        • Movies and TV
        • Craigslist
      • Apply Functions
        • Grocery
        • Airports
        • Olympics
        • Beer
        • Death Records
        • Election
        • Taxi
        • Ice Cream
        • Iowa Liquor
      • Plotting
        • R graphics plotting
          • Ice Cream
          • Olympics
          • Death Records
          • Airports
          • Taxi
          • Craigslist
        • ggplot2
          • geom_point
      • Tidyverse
      • Scraping
      • R Bloggers - Resource for Variety of R Topics
    • SQL
      • SQL books
      • Terminology
      • Queries
        • SQL Baseball examples
        • SQL Chinook examples
      • Aliasing
      • Aggregate functions
      • Joins
    • Unix
      • Standard Utilities
        • Airports
        • Ice Cream
      • Text Editors
        • vim
        • emacs
        • nano
      • Other Topics
        • Permissions
        • ~ & . & ..
        • Piping
        • Scripts
  • Corporate Partners
    • stable
  • Personal
    • stable
  • Projects
    • stable
  • Seminar TA
    • stable
  • TDM Internal Documentation
    • stable
  • Technical Tutorials
    • stable
  • The Examples Book
    • stable
  • Tools
    • stable
Tools stable
  • Tools
  • tr
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tr

The tr command can be used to translate one set of characters into another set of characters. Some details are given in section 21.11 of the Unix Power Tools book

removing multiple spaces from a file

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