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→Using Variables in Shell Scripts
Shell environment variables shape the working environment whenever you are logged in Common shell.<br>Some of these variables are displayed in the table below.<br>(you can issue the pipeline command '''set | more''' to view all variables)
[[Image:environment.png|thumb|left|400px|'''Shell environment variables''' shape the working environment whenever you are logged in Common shell.]]
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===Using Control Flow Statements in Shell Scripts===