mmv: add page

pages/common/mmv.md

@@ -0,0 +1,19 @@
+# mmv
+
+> Move and rename files in bulk.
+
+- Rename all files with a certain extension to a different extension:
+
+`mmv "*{{.old_extension}}" "#1{{.new_extension}}"`
+
+- Copy report6part4.txt to ./french/rapport6partie4.txt along with all similarly named files:
+
+`mmv -c {{"report*part*.txt"}} {{"./french/rapport#1partie#2.txt"}}`
+
+- Append all .txt files into one file:
+
+`mmv -a "*.txt" {{"all.txt"}}`
+
+- Convert dates in filenames from "M-D-Y" format to "D-M-Y" format:
+
+`mmv "[0-1][0-9]-[0-3][0-9]-[0-9][0-9][0-9][0-9].txt" "#3#4-#1#2-#5#6#7#8.txt"`