RE: Unix scripting need help

From: <Jared.Still_at_radisys.com>
Date: Wed, 28 Aug 2002 14:38:58 -0800
Message-ID: <F001.004C2167.20020828143858@fatcity.com>

Kevin,

I haven't tossed the Kochan & Wood yet. :)

Knowing Bourne, Korn, PL/SQL and Perl gives me a nice set of tools to use. ( on rare occasions, C )

Believe it or not, I actually use ksh from time to time.

My single most cherished script is a set of ksh functions and aliases that recalls a set of directories for a project, and lets me easily navigate to the correct directory.

Something I find hard to do from memory when there are hundreds of dirs, and not a line of perl. :)

Jared

"kkennedy" <kkennedy_at_firstpoint.com>
Sent by: root_at_fatcity.com
08/26/2002 02:41 PM
Please respond to ORACLE-L  

        To:     Multiple recipients of list ORACLE-L <ORACLE-L_at_fatcity.com>
        cc: 
        Subject:        RE: Unix scripting need help

Blimey! Doesn't anyone know korn shell out there any more. Perl perl perl -- that's all I ever hear anymore. It gets old... (I'm gonna have to buy Jared's book one of these days).

x=${file1%.log}
file_tag1=${x#mylogfile}

Kevin Kennedy
First Point Energy Corporation

If you take RAC out of Oracle you get OLE! What can this mean?

-----Original Message-----
Sent: Monday, August 26, 2002 6:58 AM
To: Multiple recipients of list ORACLE-L

> For example, my files are like these
>
> mylogfile001.log
> mylogfile002.log
>
> I want to initialize my variables with those number, like this
>
> i=1
> for all_file in `ls -1 /tmp`
> do
>
> file$i=all_file
> i=i+1
> done
>
> file_tag1=`unix_command $file1 ` <--- help me here
>
> when I do
>
> echo $file_tag1
>
> it should give me 001

Is your purpose to simply display the numbers or to generate the maximum in order to start naming new files?

If the latter seriously consider using a timestamp:

    i=$(date +%Y%m%d%H%M%S);

this solves all of the math for you automaticlly. A onesecond  sleep at the start of your program guarantees that you will not re-use the names.

To get the digit strings out you could use sed or perl:

    i=$( echo $file | sed -e 's/[^0-9]*//g' )

or use perl for the code instead of shell:

    for( @ARGV )
    {

        my ($i ) = /(\d+)/;
        Print "File and number: $_, $i\n";

    }

--
Steven Lembark                               2930 W. Palmer
Workhorse Computing                       Chicago, IL 60647
                                            +1 800 762 1582
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  INET: Jared.Still_at_radisys.com

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Received on Wed Aug 28 2002 - 17:38:58 CDT