sed replace string

Hi,

How can i execute the below. I want to replace value1 string value with new/new/newString value

sed 's/value1/new/new/newString'/' file.txt

~Vinodh' Kumar

try to change Field Seperator as #, so

sed 's#value1#new/new/newString#g' file.txt

It worked. Thank You:b: