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→Using Variables in Shell Scripts
[[Image:environment.png|thumb|right|300px|]]Shell environment variables shape the working environment whenever you are logged in Common shell.<br>Some of these variables are displayed via Linux commands in the diagram displayed on the right-side.<br>(you can issue the pipeline command '''set | more''' to view all variables)
Placing a dollar sign ('''$''') prior to the variable name will cause the variable to expand to the value contained in the variable.
