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(eshell)Invocation

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Invocation
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   Unlike regular system shells, Eshell never invokes kernel functions
directly, such as `exec(3)'.  Instead, it uses the Lisp functions
available in the Emacs Lisp library.  It does this by transforming the
command you specify into a callable Lisp form.(1)

   This transformation, from the string of text typed at the command
prompt, to the ultimate invocation of either a Lisp function or external
command, follows these steps:

  1. Parse the command string into separate arguments.

  2.
   ---------- Footnotes ----------

   (1) To see the Lisp form that will be invoked, type:
`eshell-parse-command "echo hello"'