# find > Find files under the given directory tree, recursively. - Find files by extension: `find {{root_path}} -name {{'*.py'}}` - Find files matching path pattern: `find {{root_path}} -path {{'**/lib/**/*.py'}}` - Run a command for each file, use {} within the command to access the filename: `find {{root_path}} -name {{'*.py'}} -exec {{wc -l {} }}\;` - Find files modified since a certain time: `find {{root_path}} -name {{'*.py'}} -mtime {{-1d}}` - Find files using case insensitive name matching, of a certain size: `find {{root_path}} -size +500k -size -10MB -iname {{'*.TaR.gZ'}}` - Delete files by name, older than a certain number of days: `find {{root_path}} -name {{'*.py'}} -mtime {{-180d}} -delete` - Find empty files or directories: `find {{root_path}} -empty` - Find files matching more than one search criteria: `find {{root_path}} -name {{'*.py'}} -or -name {{'*.r'}}`