Congratulations
Onward and upward.
HM
On 03/05/2015 09:31 PM, Michael Havens wrote:
> Well, I know no one will really care but me but I have to share!
>
> I decided to follow the TLDP manual/workbook to learn BASH. I came to
> this decision for a couple of reasons: the first being that it is
> likely the most authoritative and the second was they have exercises
> whereas the IBM pages didn't.
>
> Well, I read the first chapter and got to the exercises. The project
> was to write a script that would print the date and time, who is
> logged in, and what the uptime of the system is; the I am supposed to
> ake all of that and print it to a file.
>
> I thought to myself, "But they haven't taught us anything!" I was
> about to write to the user group I am part of and ask my infamous "how
> do I" question when I stopped, took a breath, and figured I should at
> least try to work it out on my own. So I figured the first line is a
> pound sign and exclamation point but I was unsure of the order; was it
> !# or #!. So it just so happens that this sequence of characters is
> called a sha-bang so the exclamation point must come second. I'll try
> that first.
> Then I burned some brain cells trying to figure how to run multiple
> commands and print it all to a single file. I tried encapsulating
> everything with curly brackets ({ }) but that gave an error of some
> sort. Finally, after a couple of minutes, it came to me that they
> probably want their readers to use a favorite search engine
> (duckduckgo in my case). So after entering the parameters of the
> search some hits came up and after looking through a few I found one
> that fit my question. How could I not have realized how to do this? It
> is merely using the append file redirection (>>)! So this is what I
> wrote:
>
> #! /bin/bash
> date >><file>&
> who >><file>&
> uptime>><file>
> done
>
> Luckily I realized that for there to be a 'done' there also needs to
> be 'do'. There is no 'do' therefore we don't need the 'done'.
> So I ran the program and everything seemed to run without error,
> however, did it write the data to a file? I then go back to the
> terminal and type 'more <file>'. Look at that! Everything is there.
>
> Thu Mar 5 20:44:36 MST 2015
> 20:44:36 up 9 days, 1:45, 2 users, load average: 0.52, 0.55, 0.73
> bmike1 tty8 2015-02-24 19:00 (:0)
> bmike1 pts/2 2015-03-05 20:22 (:0.0)
>
> :-)~MIKE~(-:
>
>
> ---------------------------------------------------
> PLUG-discuss mailing list - PLUG-discuss@lists.phxlinux.org
> To subscribe, unsubscribe, or to change your mail settings:
> http://lists.phxlinux.org/mailman/listinfo/plug-discuss
---------------------------------------------------
PLUG-discuss mailing list -
PLUG-discuss@lists.phxlinux.org
To subscribe, unsubscribe, or to change your mail settings:
http://lists.phxlinux.org/mailman/listinfo/plug-discuss
(text/plain)