linuxgeek: Re: [LINUX_Newbies] Re: Grep questions

Tuesday, July 2, 2013

Re: [LINUX_Newbies] Re: Grep questions

Good morning
Mi Jul 03 08:05:13 2013
Thank You for help.

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> The root, "/", is the top of the filesystem tree. Everything can be found
> from there by descending into subdirectories.
>
> Your "home" directory is the working directory you start with when
> you log in, and is a special area set aside in the system for _your_
> files. It is owned by you, and you can do what you like inside it.
*
So when I am searching
file
which I wrote by myself
I should start
grep in the home-directory, is this right?
Thank You for help.

> Of you look at your $PATH variable by going:
>
> echo $PATH
echo $PATH
/usr/lib/lightdm/lightdm:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games

I did it
but the result is confusing me:
I opened the terminal:
echo $PATH

> you will see a list of directories, separated by colons.
> Program files like in those directories.
So I should copy a compiled file
or a shell file
in one of these directories?
What directory should I use for own files?

>
> Normally there will be a "bin" directory in your own home directory,
> eg "/home/name/bin", at the start of your $PATH. This lets you write
> your own commands and have somewhere to put them.
*
So I should use:
/home/name/bin.

>
> | Ist home where the data files are?
>
> Your home directory is where your files live, be they data or
> program. "/home" is a common convention for where the user home
> directories are stored.
So
maybe this is computer1 with user1.
When I start using user2, then there will be a new home directory.
Where using
Linux
Xubuntu
Siduction
is the place for
create a second user?

So in there is probably "/home/name"
> containing your files, and "/home/some-other-name" containing the
> files of another user.
*
Thank You.

>
> | | A better command for your example might be:
> | |
> | | grep -r "thisismyAIM" . > resu.txt
> | |
> | | *
> | | grep -r "thisismyAIM" . > resu.txt
> | | Is this better then
> | | grep -r "thisismyAIM" * > resu.txt
> |
> | Slightly. "*" will not match files/directories starting with a dot
("."),
> | like .ssh. That is a convention to "hide" configuration files as a
> | matter of convenience.
> | It may be what you want, or it may not.
> |
> | *
> | So if I am searching for my data files like
> | text.txt
> | pic.gif
> | movie.avi
> |
> | then it is the same and I can use both like:
> | grep -r "thisismyAIM" . > resu.txt
> | grep -r "thisismyAIM" * > resu.txt
> | ?
>
> Pretty much, yes.
*
Thank You.

>
> | Searching * will missing the "dot" names.
>
> This is becuase then you type:
>
> grep thisismyAIM *
>
> the shell expands the "*" into a list of your files in the current
> directory, so the actual command that is _run_ looks like this:
>
> grep thisismyAIM movie.avi pic.gif text.txt
>
> (whatever the real files are, of course). The expansion of "*" will
> not include any "dot" files like ".bash_profile". This is a
> convenience.
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Thank You.
I am learning step by step
so again thank You to the Email group.

Regards
Sophie