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Shell Programming and Scripting

Missing ] error in csh script

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# 1  
Old 02-25-2011
Missing ] error in csh script
The below script gives error: Missing ]

Code:
#!/bin/csh
set MAX=15
set PATTERN='dtsession'
set NUM=`ps -eaf | grep -c $PATTERN`
echo "No of dtsession = "$NUM
if [ "$NUM" -gt "$MAX" ]
then
 echo 'Quota exceeded permissible limit'
 echo 'sending mail...............'
 
 mail hiten.r.chauhan@gmail.com<<EOF
 $NUM is greater than 15
 EOF
 echo 'mail sent..................'
fi

when run
Code:
adroit:/home/seo/hitendra 125 ] unix_5_b.sh
No of dtsession = 44
Missing ].
adroit:/home/seo/hitendra 126 ]

what is the root cause ?
Last edited by hiten.r.chauhan; 02-25-2011 at 05:40 AM.. Reason: problem in giving error
# 2  
Old 02-25-2011
I believe that you need to use ordinary brackets (...) rather than square brackets in C shell scripting
Code:
if ( "$NUM" -gt "$MAX" )

# 3  
Old 02-25-2011
You're mixing CSH syntax with Bourne Shell syntax. Settle for one of them. And seeing as most of your code is Bourne compatible, I'd say go with that (and it's easier to debug too IMO).
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