UNIX for Dummies Questions & Answers

Hi, I have 2 lists of words and I need to take every line in first_list.txt and use agrep command to find similar words in whole second_list.txt.

I tried to use AWK, but I dont know how to take current line ($0) and use in inside of agrep

Code:

cat first_list.txt | awk ''

Thanks for help

Please give more clue : thanks to provide a representative sample of input and expected output

Try a loop:

while read pattern
do
agrep $pattern secondlist.txt
done < firstlist.txt

or

agrep -f firstlist.txt secondlist.txt

The -f option tells agrep to read patterns from the first file. However, it works only for exact match and for simple patterns.

Code:

fgrep first_list.txt second_list.txt

grep -f first_list.txt second_list.txt

I would like to use more than one command, or something else (like grep). So I would use first one, the loop.But Idk why it doesnt work.

A agrep was just an example.

---------- Post updated at 12:16 PM ---------- Previous update was at 12:13 PM ----------

Okay, here is another example..

1)Read first line in first_list.txt
- search this line in second_list.txt using grep
- print the result
2) Read second line..
...
3) Read third line ...
...

and so on

Is this homework?

No its not, its just for my personal use :-).