Re: Changing the Bash/SSH prompt

>>>>> If you don't want logout and then login again, you can run
>>>> . ~/.bashrc
>>
>> That was usefull to know, but how does it actually do it
>
> It's s short form of the built in source command of bash, here is the
> section
> from the man page
>
> . filename [arguments]
> source filename [arguments]
> Read and execute commands from filename in the current
> shell
> environment and return the exit status of the last command
> exe-
> cuted from filename. If filename does not contain a slash,
> file
> names in PATH are used to find the directory containing
> file-
> name. The file searched for in PATH need not be
> executable.
> When bash is not in posix mode, the current directory
> is
> searched if no file is found in PATH. If the sourcepath
> option
> to the shopt builtin command is turned off, the PATH is
> not
> searched. If any arguments are supplied, they become the
> posi-
> tional parameters when filename is executed. Otherwise
> the
> positional parameters are unchanged. The return status is
> the
> status of the last command exited within the script (0 if
> no
> commands are executed), and false if filename is not found
> or
> cannot be read.

AFAIC understand, if that is so, is the 'export' command really necessary ?
Or does the normal login execution require the export ?

>> I do not understand the syntax, why '.' space, why the tilde ?
>> Why not just './.bashrc' ?
>
> tilde is used as a simple replacement for the absolute path to the users
> home
> directory, it's always regexpr to the absolute path before it's handed
> over to
> the command itself (this is done by the shell, in this case bash).
> ~username works too and you can use it for another users home directory.
>
> Why use ~/.bashrc instead of ./.bashrc, what if you aren't in your home
> directory, but say in /usr/local, as you don't have your bashrc there, the
> source/environment update would fail.

Are thats useful.

Thanks,

Aaron


.

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