すごい単純なメモだが、好きな、実際に役に立っているオプションをリストアップする
-w
This has the same effect as「Match whole word」in VS Code search:
-l
Only show matching filenames. Also shows the uniquely
-n
line numbers
-A {number}
show {number} lines after each line in the results
-B {number}
show {number} lines before each line in the results
-C {number}
show {number lines before AND after each line in the results!
-o
only show the matching part of the line