= Environment variables
{wiki=Environment_variables}
Environment variables are dynamic values that can affect the way running processes on a computer behave. They are part of the operating system's environment in which a process runs and can be used by applications to retrieve configuration information. Here are some key points about environment variables: 1. **Key-Value Pairs**: Environment variables are typically stored as key-value pairs (e.g., \`PATH=/usr/local/bin\`), where the key is the name of the variable and the value is its corresponding data.
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