Added RANDOM
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README.md
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README.md
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* [Get the name of the Operating System / Kernel.](#get-the-name-of-the-operating-system--kernel)
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* [Get the current working directory.](#get-the-current-working-directory)
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* [Get the number of seconds the script has been running.](#get-the-number-of-seconds-the-script-has-been-running)
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* [Get a pseudorandom integer.](#get-a-pseudorandom-integer)
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* [Information about the terminal](#information-about-the-terminal)
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* [Get the terminal size in lines and columns (*from a script*).](#get-the-terminal-size-in-lines-and-columns-from-a-script)
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* [Get the terminal size in pixels.](#get-the-terminal-size-in-pixels)
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This is an alternative to `sed`, `awk`, `perl` and other tools. The
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function below works by finding all leading and trailing white-space and
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removing it from the start and end of the string. The `:` built-in is used
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in place of a temporary variable.
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removing it from the start and end of the string. The `:` built-in is used in place of a temporary variable.
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**Example Function:**
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"$SECONDS"
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```
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## Get a pseudorandom integer.
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Each time `$RANDOM` is used, a different integer between `0` and `32767` is returned. This variable should not be used for anything related to security (*this includes encryption keys etc*).
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```shell
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"$RANDOM"
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```
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# Information about the terminal
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## Get the terminal size in lines and columns (*from a script*).
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