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While Loop not running

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# 1  
Old 03-26-2012
While Loop not running
Code:
echo "The recreate was successfully completed for device file $LCL_CLN_FILE." >> $LOG_FILE
   remaining=$(symclone -sid $LCL_SID -f $ETC/$LCL_CLN_FILE query | grep MB | awk '{print $2}')
if [ $remaining -ne 0 ]
   then
   while [ $remaining -ge 1 ]
   do
           echo "$remaining MB's to be copied........." >> $LOG_FILE
           sleep 500
           remaining=$(symclone -sid $LCL_SID -f $ETC/LCL_CLN_FILE query | grep MB | awk '{print $2}' | sed 's/[.].*//')
  done
else
   echo "DATA is already copied" >> $LOG_FILE
fi

I get a value for remaining, but when I run this the script is sleeping and comming out of while loop, what I am doing wrong?


Moderator's Comments:
Mod Comment Please use code tags!
Last edited by rajsan; 03-26-2012 at 11:00 AM.. Reason: code tags, see PM
# 2  
Old 03-26-2012
Why are the lines which populate $remaining different? One has a "sed", one doesn't.

What does the raw line contining Mb look like?
# 3  
Old 03-26-2012
Question should be what value you get at what step. Maybe you add an echo $remaining at the points where you issue that symclone to see what it is actually doing.

Also I guess you could leave out the initial if-condition, as the while-loop already checks the status and -ge 1 must be true - else it would not reach the while-loop. So just the while-loop should be sufficient in terms of control.
This User Gave Thanks to zaxxon For This Post:
rajsan
# 4  
Old 03-26-2012
Methyl,

I can add sed to the other line, I missed it.
Code:
remaining=$(symclone -sid $LCL_SID -f $ETC/LCL_CLN_FILE query | grep MB | awk '{print $2}' | sed 's/[.].*//')

I get an integer value assigned to "remaining" variable as an output of the command.

---------- Post updated at 10:37 AM ---------- Previous update was at 10:22 AM ----------

Zaxxon,

I will try to implement the changes that you suggested.

The output right now is as follows:-

Code:
 
The recreate was successfully completed for device file GSI_REPORTING_PAIRS.
1921291 MB's to be copied.........
 
'Activate' operation execution is in progress for the device list in
device file '/usr/local/scripts/emc/backup/etc/GSI_REPORTING_PAIRS'. Please wait...


Right now it goes in to the
Code:
 while [ $remaining -ge 1 ]

loop and just comes out of it . The activate operation should actually be done after
Code:
  $remaining

reaches less than 1

I also get an error saying argument missing, not sure if it makes sense
# 5  
Old 03-26-2012
For which command, it is showing argument missing ?

may be in some point of loop, the grep command may fails to give the filename to the awk command.

Code:
symclone -sid $LCL_SID -f $ETC/LCL_CLN_FILE query | grep MB

# 6  
Old 03-26-2012
Ok, please add a set -x at the beginning of that code snippet and set +x at the end of it and rerun. Then post the output please.
# 7  
Old 03-26-2012
Quote:
awk '{print $2}'
Based on the data sample, isn't the number the first field? On my test the first value of $remainder is the string MB's which might explain your syntax error.
Code:
awk '{print $1}'

Also, the "sed" appears to be pointless.
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