When I try the below if Condition with single condition its working fine.
But when I try to Club both its working . But giving wrong results.
In my case
cond1 = -f ${filename1} = true
cond2 = -f ${filename2} = true
But Cond1 & Cond2 is resulting in False ??? Please advise
filename1='/home/abc????????'
filename2='/home/yyy????????'
if [[ -f ${filename1} && -f ${filename2} ]]
then
echo 'files Available' >>${log}
else
echo 'Files Not Available' >>${log}
fi
Thank you 
I don't see anything wrong with that, but then, you haven't said what your shell is. Those ????'s will expand, by the way, unless you put the filenames in "quotes". Try -a instead of && too.
Its Korn Shell. I really dont understand why this is not giving correct results ... 
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Thank You.
The UNIX and Linux Forums
Did you try adding quotes like I suggested, so the ????? don't accidentally expand into one or more different filenames?
Thank you Corona688 for your help.
FYI - Same code worked. I tried creating a new file. I got it ... Probably their where some bad characters (Edior issues)