Easy command line search with grep and find

I've been using grep and find for searches on command line.

Examples:

# Search recursively for 'User' in file contents under current directory
grep -r 'User' .

# Search recursively for 'User' in file contents under current directory and display 2 lines before and after
grep -r -2 'User' .

# Search recursively for 'User' in file contents under current directory and display 2 lines before and after with color
grep -r -2 --color 'User' .

# Search for filenames that contains user.
find . -name 'user.*'


Combine them together:

grep -r -2 --color 'User' $(find . -name 'user.*')