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eshell.texi improvements

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* doc/misc/eshell.texi (Built-ins): eshell/sudo is a compiled
Lisp function in `em-tramp.el'.  Mention also $*, $1, $2, ...
(Aliases): Add $*, $1, $2, ... to the variable index.
This commit is contained in:
Michael Albinus 2017-10-01 13:31:39 +02:00
parent 7abb5c3960
commit 1ba3471b9b
1 changed files with 6 additions and 2 deletions
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doc/misc/eshell.texi
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@ -239,7 +239,6 @@ especially for file names with special characters like pipe
(@code{|}), which could be part of remote file names. (@code{|}), which could be part of remote file names.
@node Built-ins @node Built-ins
@section Built-in commands @section Built-in commands
Several commands are built-in in Eshell. In order to call the Several commands are built-in in Eshell. In order to call the
external variant of a built-in command @code{foo}, you could call external variant of a built-in command @code{foo}, you could call
@ -258,7 +257,7 @@ alias, @ref{Aliases}. Example:
@example @example
~ $ which sudo ~ $ which sudo
eshell/sudo is a compiled Lisp function in `em-unix.el' eshell/sudo is a compiled Lisp function in `em-tramp.el'.
~ $ alias sudo '*sudo $*' ~ $ alias sudo '*sudo $*'
~ $ which sudo ~ $ which sudo
sudo is an alias, defined as "*sudo $*" sudo is an alias, defined as "*sudo $*"
@ -419,6 +418,9 @@ Lisp functions, based on successful completion).
@end table @end table
@ref{Aliases} for the built-in variables @samp{$*}, @samp{$1},
@samp{$2}, @dots{}, in alias definitions.
@node Variables @node Variables
@section Variables @section Variables
Since Eshell is just an Emacs REPL@footnote{Read-Eval-Print Loop}, it Since Eshell is just an Emacs REPL@footnote{Read-Eval-Print Loop}, it
@ -429,6 +431,7 @@ would in an Elisp program. Eshell provides a command version of
@node Aliases @node Aliases
@section Aliases @section Aliases
@vindex $*
Aliases are commands that expand to a longer input line. For example, Aliases are commands that expand to a longer input line. For example,
@command{ll} is a common alias for @code{ls -l}, and would be defined @command{ll} is a common alias for @code{ls -l}, and would be defined
with the command invocation @kbd{alias ll 'ls -l $*'}; with this defined, with the command invocation @kbd{alias ll 'ls -l $*'}; with this defined,
@ -438,6 +441,7 @@ automatically written to the file named by @code{eshell-aliases-file},
which you can also edit directly (although you will have to manually which you can also edit directly (although you will have to manually
reload it). reload it).
@vindex $1, $2, @dots{}
Note that unlike aliases in Bash, arguments must be handled Note that unlike aliases in Bash, arguments must be handled
explicitly. Typically the alias definition would end in @samp{$*} to explicitly. Typically the alias definition would end in @samp{$*} to
pass all arguments along. More selective use of arguments via pass all arguments along. More selective use of arguments via