mmv
mmv
TLDR
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]"
