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= Invocation
[verse]
`nickle`
`-f` _file_
`-l` _file_
`-e` _expr_
_script_ _arg_ ...
`-f` _file_::
Evaluate _file_.
`-l` _file_::
Evaluate _file_ like `-f`, but expect it to be in `$NICKLEPATH`.
`-e`::
Evaluate a Nickle expression, e.g.
+
----
$ nickle -e 3**4
81
$
----
`script`::
If Nickle encounters an unflagged argument, it assumes it to be the name of a script, which it runs.
If a `.nicklerc` file is available, it will be evaluated first.
No more arguments are processed; the rest of the line is given to the script as its arguments.
Without `-e` or a script as an argument, Nickle runs interactively,
accepting standard input and writing to standard output.
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