搜索一个字符串，在得到结果后，删除那个单词并将结果存储在变量中

I Have a file name abc.lst i ahve stored that in a variable it contain 3 words string among them i want to grep second word and in that i want to cut the word from expdp to .dmp and store that into variable I Have a file name abc.lst i ahve stored that i