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Top Forums UNIX for Dummies Questions & Answers What is the meaning of "-s" option in "if" statement? Post 302634209 by rymnd_12345 on Thursday 3rd of May 2012 03:17:43 AM
Old 05-03-2012
What is the meaning of "-s" option in "if" statement?

Hi Guys,

I'm sorry but I can't find answer for this, what is the meaning of -s option in "if" statement on unix scipting. Please see sample below:

Code:
opath=/home/output

for i in N1 N2 N3 N4
do
echo $i
if [ -s $opath/$i.GRAI ] 
then
grep $i $opath/N5_CRAI > $opath/N5_$i.crai
chmod 777 $opath/N5_$i.crai


Please advise Smilie

BR,
rymnd_12345
 

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