[clug] CLUG meeting 21 August 2003

[Stephen Jenkin]

My 2c :-)

set -- `cal $mon $year | tail +3|cut -c 13-14`
thurs=$4

The 'tail +3' removes the first 3 lines - the headers
The -c 13-14 picks out the columns that contains thursdays.
The first version tested for a blank 1st var (( [ -z "$1" ] && shift ))
But it wasnt necessary - the shell only loaded the non-balnk variables.

Tested for all months this year with bash on Solaris [hopefully 'cal'
output is the same]

HTH

cheers
sj


Steve Jenkin, Unix Sys Admin
0412 786 915 (+61 412 786 915)
PO Box 48, Kippax ACT 2615, AUSTRALIA

On Mon, 18 Aug 2003, Michael Still wrote:

> On Mon, 18 Aug 2003, Brad Hards wrote:
> 
> > By my calendar ( http://korganizer.kde.org/ ), that is only the third 
> > Thursday. I'd normally not be too worried (heh, as long as it happens!) but 
> > I'm away this week, so I'd prefer it on the 28 Aug.
> 
> Hey, that's twice in one year! I stand corrected. So, here's the script 
> that generates that email:
> 
> -------
> #!/bin/bash
> 
> export day=`date +"%d"`
> export month=`date +"%B"`
> mon=`date +"%m"`
> export year=`date +"%Y"`
> 
> thurs=`cal $mon $year | head -6 | tail -1 | cut -f 5 -d " "`
> nthurs=$(( $day + 3 ))
> export thurs
> 
> if [ $nthurs = $thurs ]
> then
>   ./subst.pl < template | mail -s "CLUG meeting $thurs $month $year" mikal
> else
>   echo "nothing" | mail mikal
> fi
> -----
> 
> As a challenge, anyone care to fix it so that months with no Thursday on 
> the first line don't cause this bug?
> 
> Cheers,
> Mikal
> 
> -- 
> 
> Michael Still (mikal at stillhq.com) | Stage 1: Steal underpants
> http://www.stillhq.com            | Stage 2: ????
> UTC + 10                          | Stage 3: Profit
> 
>