32 lines
441 B
Plaintext
32 lines
441 B
Plaintext
# VARIABLES
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## Assign and access a variable using a variable
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```shell
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$ hello_world="value"
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# Create the variable name.
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$ var="world"
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$ ref="hello_$var"
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# Print the value of the variable name stored in 'hello_$var'.
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$ printf '%s\n' "${!ref}"
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value
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```
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Alternatively, on `bash` 4.3+:
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```shell
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$ hello_world="value"
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$ var="world"
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# Declare a nameref.
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$ declare -n ref=hello_$var
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$ printf '%s\n' "$ref"
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value
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```
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<!-- CHAPTER END -->
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