Re: [Linuxcommand-discuss] Greetings & a Script

[Bruce B. <bbu...@ea...>]

----- Original Message -----
From: "William Shotts" <wes...@co...>
To: <lin...@li...>
Sent: Wednesday, August 28, 2002 7:14 PM
Subject: Re: [Linuxcommand-discuss] Greetings & a Script


> On Wednesday 28 August 2002 08:36 pm, Bruce Burhans wrote:
>
> > > First, you could simplify it by doing the following:
> > >
> > > #!/bin/bash
> > >
> > > old=$1
> > > new=$2
> > >
> > > for i in *$old; do
> > > k=$(basename $i $old)
> > > mv $i $k$new
> > > done
> > >
> > > I haven't tested this, but it looks right ;-)
> >
> >         Bill.....I have bad news and good news.....
> >
> > The script above  puts the new extension on every file
> > in the directory, regardless of its present extension...
> > The  test part is needed....
>
> Try it again Bruce.  The "for" will only select files that have the old
> extension.  Make sure you are using:
>
> for i in *$old;
>
> and not
>
> for i in * $old;
>
> If you include a space between the "*" and the "$old", it will process all
> the files.


        Ahh!  Oops!  Dot thy i's and cross thy t's.....

>
> >
> > I am  a good way through your scripting tutorial,  and it
> > is the best one  out of a half-dozen I have on my box..
> >
> > You take the time to explain what is going on, to answer
> > obvious questions that pop up,  and are oriented towards
> > functionality.  For example:  Not one of the other tutorials
> > mentions that you  bash has a help command.....
> >
> > I've read the entire bash reference manual, and had no
> > idea that such a thing existed.......Nor do any of them
> > tell you that you put a function in your  .bashrc.....!
> > (why don't you need to chmod +rx  it ? )  or enter them
> > on the cli.....
>
> You don't need to make it executable because it's not executed, it's
sourced.
> That is, it is read as input by another script, usually .bash_profile.
>
> > You have the makings of a really good book there...
> > (e or otherwise )
>
> Maybe someday.  I'd be happy just to have enough time to write the next
> lesson.
>

    Am looking forward to it.....

Bruce<+>


> --
> |||||  William Shotts, Jr. (bshotts AT panix DOT com)
> |||||  Be a Linux Commander!  Follow me to http://linuxcommand.org
>
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