Error asigning value in unix script


machine1=$(ssh tesol086 "cat /a/b/c/d* | grep -i \"to=<>\" | grep -i sent | grep \"$MES \" | cut -c4-6 | grep \" $day_y\" | wc -l")

echo $machine1
if [[ $machine1 -eq 20 ]]; then
echo "error"

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Im getting:

script.ksh[58]: =NOK:  not found

** note line 58 is line 10 here
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Did you mean to say
Line 1 should be


Line 10 should be


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celticianAuthor Commented:
So you mean i can assign the string value without "" quotes??

And what if i want to assign to RESULT variable the string "NOT OK" with a blank space between?? don't i need quotes?
To include a blank space, you can use "" or '' or \
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