arash deilami's questions

I have a text file containing names (nameslist.txt) and I want to read them using cat and pipe the result with xargs to a grep command, so that grep checks the existence of each name that it receives in a target file (targetfile.txt).

Let's say targetfile.txt contains a large number of names which might have some of those names in nameslist.txt.

What should I add between xargs and grep, and between grep and ./targetfile.txt, below?

cat ./nameslist.txt | xargs grep ./targetfile.txt

Thank you

How can we use grep to get line(s) containing a group of words, while the order of words is not important, although line(s) should contain all words mentioned in search?

I have done that with phasing the search (with piping, saving the outputs in temporary files, and searching again), but I'd like to know if I can do that in one attempt.

Here is a sample; I want to search in the lines below for lines containing sample, words, list:

it's a sample test file for a list of words.
list of words without a specific order, it's a sample.
line with no search keyword here.
list the sample files.
something completely different.

And get this result:

it's a sample test file for a list of words.
list of words without a specific order, it's a sample.