Search all occurrences of string in linux [closed]

Question

I am new to Linux. I want to search a string in log file. In search result I want only lines which contains that string.

Answer 1

Try this:

$ grep <string> <file>

where <string> and <file> represent the string you are looking for and the name of the file, respectively. You might also want to read up on the grep command as it is very powerful.