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This is mmv, a program to move/copy/append/link multiple files
according to a set of wildcard patterns. The wildcard matches
can be reused in forming the target names. You can i.e. move
all *.c.or? files to or?.new.*.c by saying 'mmv "*.c.or?" or=2.new.=1.c'

The multiple action is performed safely, i.e. without any unexpected
deletion of files due to collisions of target names with existing
filenames or with other target names. Furthermore, before doing
anything, mmv attempts to detect any errors that would result from the
entire set of actions specified and gives the user the choice of
either aborting before beginning, or proceeding by avoiding the
offending parts.