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336.

Declare variables and/or give them attributes. If no NAMEs are
given, then display the values of variables instead. The -p option
will display the attributes and values of each NAME.

The flags are:

-a[tab]to make NAMEs arrays (if supported)
-f[tab]to select from among function names only
-F[tab]to display function names (and line number and source file name if
[tab]debugging) without definitions
-i[tab]to make NAMEs have the `integer' attribute
-r[tab]to make NAMEs readonly
-t[tab]to make NAMEs have the `trace' attribute
-x[tab]to make NAMEs export

Variables with the integer attribute have arithmetic evaluation (see
`let') done when the variable is assigned to.

When displaying values of variables, -f displays a function's name
and definition. The -F option restricts the display to function
name only.

Using `+' instead of `-' turns off the given attribute instead. When
used in a function, makes NAMEs local, as with the `local' command.