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functions not working

 
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Top Forums UNIX for Dummies Questions & Answers functions not working
# 1  
Old 12-27-2001
Data functions not working
I have the following functions but when I run SelectQmgr from a Menu Selection it doesn't do anything.
Code:
SelectQmgr ()
{
qmgrlist=`ls /var/mqm/qmgrs/  | grep -v @SYSTEM`
qmgrcount=`ls /var/mqm/qmgrs/ | grep -v @SYSTEM | wc -l`
if [ "$qmgrcount" = "1" ]
then
  echo "$qmgrlist QManager will be used "
  QMGR=$qmgrlist 
elif [ "$qmgrcount" = "0" ]
 then 
  echo " No QManagers found or defined on this System "
  exit
elif [ "$qmgrcount" = "2" ]
 then
WhatQmgr
fi
}

WhatQmgr ()
{
 PS3="Select A QManager"
 select qmgrchoice in $qmgrlist 
  do 
  QMGR=$qmgrchoice
  echo "$qmgrchoice QManager was selected" 
break
done
}

added code tags for readability --oombera
Last edited by oombera; 02-19-2004 at 03:21 PM..
# 2  
Old 12-28-2001
After you set qmgrcount, put this as the next line:
echo qmgrcount = $qmgrcount > /dev/tty

Without seeing the complete script I cannot tell how you have standard out redirected at the time the function runs. So I think it's safer to send the output directly to /dev/tty.

Notice that some garbage in /var/mqm/qmgrs could easily set the count to 3 or something. Would would you expect your first function to do then?
# 3  
Old 12-28-2001
Temp solution
Perderabo,

I figured out that the number was ending up in the 8th field so I cut out the 8th field and now it works fine.

qmgrcount=`ls /var/mqm/qmgrs/ | grep -v @SYSTEM | wc -l | cut -d' ' -f8`

You bring up a good point. If there is garbage in that directory I guess I could live with it and clean it up, but if there are more than 3 files I would need to insert greater than.

Is this how I could do it?

elif [ "$qmgrcount" -gt "2" ]
# 4  
Old 12-28-2001
Re: Temp solution
Quote:
Originally posted by darthur
Is this how I could do it?

elif [ "$qmgrcount" -gt "2" ]
That would work, but I would go with just:
else
# 5  
Old 12-28-2001
How would I specify a number range?
If I wanted to select a range from 2-9 would this work?

elif [ "$qmgrcount" = "2-9" ]
# 6  
Old 12-28-2001
Re: How would I specify a number range?
Quote:
Originally posted by darthur
If I wanted to select a range from 2-9 would this work?

elif [ "$qmgrcount" = "2-9" ]
You could do:
elif [ "$qmgrcount" -ge 2 -a "$qmgrcount" -le 9 ]

but I really prefer [[ to [ so I would rather:
elif [[ $qmgrcount -ge 2 && $qmgrcount -le 9 ]]

but not all shells have [[. My favorite way is:
elif ((qmgrcount>=2 && qmgrcount<=9))

but again not all shells have ((.
# 7  
Old 12-28-2001
One Step Back
Perderabo,

I tried your suggestion....

echo qmgrcount = $qmgrcount > /dev/tty


but this just outputs "qmgrcount =" when it gets to this part of the function.


A related problem......

I am having problems with the $QMGR variable. When I try go back and run the function WhatQmgr Menu, it doesn't change the QMGR variable to the one I have selected. How do I overwrite or change the $QMGR varible on the fly?
 
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