26 lines
611 B
Bash
26 lines
611 B
Bash
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#!/usr/bin/env bash
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#-------------------------------------------------------------------------------
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# Example 2 for Bash Tips show 21: the environment
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#-------------------------------------------------------------------------------
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BTversion='21'
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export BTversion
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echo "** Using 'grep' with 'env'"
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env | grep -E '(EDITOR|SHELL|BTversion)='
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echo
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echo "** Using 'printenv' with arguments"
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printenv EDITOR SHELL BTversion
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echo
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echo "** Using 'grep' with 'export'"
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export | grep -E '(EDITOR|SHELL|BTversion)='
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echo
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echo "** Using 'grep' with 'declare'"
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declare -x | grep -E '(EDITOR|SHELL|BTversion)='
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exit
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