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- Synopsis:
- assign [[-]<variable name> [<value>]]
-
- Description:
- ASSIGN is the general-purpose interface for creating and manipulating
- variables. Just about any value can be assigned, whether it be a
- string or a number. Internally, ircII-EPIC treats the contents of all
- variables as strings, though it is smart enough to distinguish between
- strings and numerical values for mathematical purposes.
-
- The rules for variable names are similar to those of the C language;
- they may consist of any letter, digit, or the underscore (_) character,
- and they must begin with a letter. Unlike C, variable names are not
- case-sensitive (nor are their contents, though they are case-preserving).
-
- ASSIGN is primarily used for string assignments. It can be used for
- mathematical purposes as well, using the ${} construct, but it can very
- quickly become awkward and cumbersome. Mathematical operations are
- better suited to the @ modifier (see Expressions).
-
- Examples:
- To assign a text string to the variable $foo:
- assign foo this is some text string
-
- To compute the sum of two integers:
- assign foo ${4 + 5}
-
- To delete a variable:
- assign -foo
-
- See Also:
- Expressions(7); Special_Vars(7); alias(5); eval(5); set(4) input_aliases
-
- Other Notes:
- The default behavior of the client is to not treat variables specially
- on the command line; they are passed as literal text. Variables normally
- are only expanded when used inside an alias. This naturally poses a
- problem for using ASSIGN with the ${} construct from the input line. To
- force $ expansion on the input line, set INPUT_ALIASES to on, or use EVAL.
- This is not a bug, it is a general feature of all commands.
-
-