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Thanks Dave!

But $table is the variable whose value will have '$' symbol.. I want '$' symbol to be accepted for pattern matching in egrep.
As per my research, escape sequences cannot be used in...

$table is the variable which contains name of the file.
Filename may have the special character $. Need to escape $ .

Tried below options to escape dollar:
\$$table
"\$"$table""

what is...