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### 10.10 Grepping directories with ECB

ECB offers in the popup-menus in the directories- and sources-tree-buffer commands for easy (recursive) grepping the current directory under point (directory-buffer) rsp. the current-directory (sources-buffer). In every case just the function of the options `ecb-grep-function` rsp. `ecb-grep-find-function` is called and the `default-directory` is tempor. set to the chosen directory so the grep will performed in this directory regardless of the `default-directory` of current buffer in the edit-window.

Other smart things beyond that are not done by ECB, see also `ecb-grep-function`!

So, how to exclude some subdirectories or files from the grep?

Basically this has to be done with the “-prune” option of the find-utility: If the standard-grep facility of Emacs is used then this is not easy but with the command `igrep.el` there is a convenient way to exclude things like CVS- or RCS-directories from the find-call: See the variable `igrep-find-prune-clause` of the library `igrep.el`.