Search Keyword in a Specific Directory Recursively in Linux

We can search a string recursively in a directory via grep command in linux.

Do the following:

grep -r "word" . In which, -r stands for recursive.

More advanced option:

grep -ril "word" *.log -i means ignore-case;

-l will only show the file name which contains the keyword, without printing the context of the keyword.

grep --exclude=*.txt -r "word" . --exclude will search all the files in current directory whose file name does not match the pattern "*.txt".

grep --include=*.txt -r "word" * Likewise, --include is just the opposite condition of --exclude.

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