Re: a quick Q: what is the .alias for
An alias is one word that is another word for the same thing.
An alias associates one word with another.
>From man bash :-
ALIASES
Aliases allow a string to be substituted for a word when it is used as
the first word of a simple command. The shell maintains a list of
aliases that may be set and unset with the alias and unalias builtin
commands (see SHELL BUILTIN COMMANDS below). The first word of each
simple command, if unquoted, is checked to see if it has an alias. If
so, that word is replaced by the text of the alias. The characters /,
$, `, and = and any of the shell metacharacters or quoting characters
listed above may not appear in an alias name. The replacement text may
contain any valid shell input, including shell metacharacters. The
first word of the replacement text is tested for aliases, but a word
that is identical to an alias being expanded is not expanded a second
time. This means that one may alias ls to ls -F, for instance, and
bash does not try to recursively expand the replacement text. If the
last character of the alias value is a blank, then the next command
word following the alias is also checked for alias expansion.
Aliases are created and listed with the alias command, and removed with
the unalias command.
There is no mechanism for using arguments in the replacement text. If
arguments are needed, a shell function should be used (see FUNCTIONS
below).
Aliases are not expanded when the shell is not interactive, unless the
expand_aliases shell option is set using shopt (see the description of
shopt under SHELL BUILTIN COMMANDS below).
The rules concerning the definition and use of aliases are somewhat
confusing. Bash always reads at least one complete line of input
before executing any of the commands on that line. Aliases are
expanded when a command is read, not when it is executed. Therefore,
an alias definition appearing on the same line as another command does
not take effect until the next line of input is read. The commands
following the alias definition on that line are not affected by the new
alias. This behavior is also an issue when functions are executed.
Aliases are expanded when a function definition is read, not when the
function is executed, because a function definition is itself a com‐
pound command. As a consequence, aliases defined in a function are not
available until after that function is executed. To be safe, always
put alias definitions on a separate line, and do not use alias in com‐
pound commands.
For almost every purpose, aliases are superseded by shell functions.
I hope that makes it clear :)
On 24/02/2012, lina <lina.lastname@gmail.com> wrote:
> Hi,
>
> /lib/modules/3.2.5mj-lina/modules.alias
> /lib/modules/3.1.13.1-mj-lina/modules.alias
>
> I don't know what the .alias stands for,
>
> Thanks for any explainations,
>
> Best regards,
>
>
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