typeset, whence — Shell Built-in Command to Get/Set Attributes and Values for Shell Variables and Functions
Synopsis
** typeset [+ HLRZfilrtux[n]] [name[=value] ]... whence [-pv] name...
Description
The typeset built-in command sets attributes and values for shell variables and functions. When you invoke typeset inside a function, a new instance of the variable’s name is created. The variable’s value and type are restored when the function completes. You can specify the following attributes.
| -f | Specify that names refer to function names instead of variable names. No assignments can be made, and the only other valid options are -t, -u, and -x. The -t option turns on execution tracing for this function. The -u option marks this function undefined. ... |
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