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Check content of file

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# 15  
Old 11-23-2012
buddy
if i gave the code like this
Code:
if [ [ ! -s TCM_HC_ERR_Report.txt ] 
then
cat TCM_HC_ERR_Report.txt
else
echo "Empty or not exist"
fi

its throwing error<< test: unknown operator !>>>

if i gave the code like this
Code:
if [[ ! -s TCM_HC_ERR_Report.txt ]]
then
cat TCM_HC_ERR_Report.txt
else
echo "Empty or not exist"
fi

i m getting error like this..
cool.sh: [[: not found
Empty or not exist
but i have that file in that dirrectory....
pls help
Last edited by navsan; 11-23-2012 at 04:01 AM..
# 16  
Old 11-23-2012
If you are using sh you have to use:
Code:
if [ ! -s "TCM_HC_ERR_Report.txt" ]  
then    
   cat TCM_HC_ERR_Report.txt 
else    
    echo "Empty or not exist" 
fi

# 17  
Old 11-23-2012
thx fr quick reply...
My file(TCM_HC_ERR_Report.txt) has content but the output is showing 'Empty or not exist"
# 18  
Old 11-23-2012
Yes, you have to change the condition.
Code:
[ ! -s "TCM_HC_ERR_Report.txt" ] && echo "file empty" || cat TCM_HC_ERR_Report.txt

# 19  
Old 11-23-2012
Replace
Code:
if [ ! -s "TCM_HC_ERR_Report.txt" ]  
then    
   cat TCM_HC_ERR_Report.txt 
else    
    echo "Empty or not exist" 
fi

with
Code:
if [ -s TCM_HC_ERR_Report.txt ]  
then    
   cat TCM_HC_ERR_Report.txt 
else    
    echo Empty or not exist 
fi

.
The double-quotes aren't necessary when you are having a constant file name. However, these may be required if the file name has spaces,new-lines,etc.
This is assuming that you have a file by that name in the directory which is the working directory just before the test.
Last edited by elixir_sinari; 11-23-2012 at 05:14 AM..
This User Gave Thanks to elixir_sinari For This Post:
navsan
# 20  
Old 11-23-2012
Quote:
Originally Posted by navsan
thx fr quick reply...
My file(TCM_HC_ERR_Report.txt) has content but the output is showing 'Empty or not exist"
Also, give the absolute path (from the root) for the file.
This User Gave Thanks to itkamaraj For This Post:
navsan
# 21  
Old 11-26-2012
can i get the code using While loop?
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