How to read text between two particular text in unix shell scripting -

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i want read text between 2 particular words text file in unix shell scripting. example in following:

"my name sasuke uchiha."

i want sasuke.

this 1 of many ways can done:

to capture text between "is" , "uchiha":

sed -n "s/^.*is \(.*\)uchiha.*/\1/p" infile

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