4.11. Recursive grep (rgrep, grep –R)

Unlike the members of the grep family, Linux's rgrep can recursively descend a directory tree. Rgrep has a number of command-line options and supports the same metacharacters as regular grep (grep –R). See Appendix A for a complete description of rgrep, or type rgrep–? for online help (not supported on regular versions of UNIX).

Example 4.52.

% grep -r 'Tom' ./dir

% rgrep 'Tom' ./dir

EXPLANATION

Searches recursively for all files containing Tom starting from under the ./dir directory.