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+# find
+
+> Find files under the current directory tree, recursively
+
+- find files by extension
+
+`find {{root_path}} -name {{'*.py'}}`
+
+- run a command for each file
+
+`find {{root_path}} -name {{'*.py'}} -exec {{wc -l {}}} \;`
+
+- find files modified since a certain time
+
+`find {{root_path}} -name {{'*.py'}} -mtime {{-1d}}`