As you are using the grep command to find the string from the file, why do not you use the grep's exact word matching option?

grep -RlFx 7kyJ7kSKioDTWVWeRB3TiciL1UjcmRiLn4SKiAETs90cuZlTz5mROtHWHd 
 /var/www/html/ > /var/scripts/problem_files.txt

[download]

From the grep man page:

-F, --fixed-strings Interpret PATTERN as a (list of) fixed strings

-x, --line-regexp Select only those matches that exactly match the whole line.

In reply to Re: Searching and replacing quoted regex strings by vinoth.ree
in thread Searching and replacing quoted regex strings by Anonymous Monk

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