Grep multiple “and” expressions UNIX

Question

I have been trying to find an answer for this question, but I have had difficulty getting a clear answer. Hopefully someone can assist.

I wanted to grep two patterns in a single or multiple files hoping the command will grep only files with both of the below patterns:

grep 35=[D|F|G] | 1=Account1 .log

I would like all 35=D,F,G messages that contain account 1 in .log

Hopefully someone can assist and thank you in advance.

Answer 1

Is the problem that you want to find files that contain two strings, but the strings won't be on the same line? If so, I just learned that today!

grep -l "first pattern" <files> | xargs grep -l "second pattern"

The first grep passes a list of file names to the second. xargs takes each of those filenames and passes them as an argument to the second grep.