mirror of https://github.com/tLDP/LDP
18 lines
491 B
Bash
18 lines
491 B
Bash
#!/bin/bash
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# unset.sh: Unsetting a variable.
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variable=hello # Initialized.
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echo "variable = $variable"
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unset variable # Unset.
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# In this particular context,
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#+ same effect as: variable=
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echo "(unset) variable = $variable" # $variable is null.
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if [ -z "$variable" ] # Try a string-length test.
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then
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echo "\$variable has zero length."
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fi
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exit 0
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