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@@ -28,7 +28,9 @@ export PS1 PATH
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</literallayout>
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<para>
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-Additional environment variables, aliases and so forth that are
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+The PS1 variable is an environment variable that controls the appearance of
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+the command prompt. See the bash man page for details how this variable
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+is constructed. Additional environment variables, aliases and so forth that are
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needed and/or wanted can be added at your own discretion.
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</para>
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