A variant on the "rename" command that instead swaps the names of two
files.  

 PERMSSN    UID  GID    PACKED    SIZE  RATIO     CRC       STAMP          NAME
---------- ----------- ------- ------- ------ ---------- ------------ -------------
[generic]                  299     974  30.7% -lh5- 9666 Dec 14  1990 SwapName.info
[generic]                   29      29 100.0% -lh0- 282f Dec 14  1990 SwapName/.info
[generic]                  126     154  81.8% -lh5- a1c4 Dec 14  1990 SwapName/ReadMe.fnf
[generic]                 3252    5848  55.6% -lh5- ee62 Dec 14  1990 SwapName/SwapName
[generic]                  201     312  64.4% -lh5- ddd3 Dec 14  1990 SwapName/SwapName.doc
[generic]                  200     366  54.6% -lh5- 7a69 Dec 14  1990 SwapName/SwapName.doc.info
---------- ----------- ------- ------- ------ ---------- ------------ -------------
 Total         6 files    4107    7683  53.5%            Dec 14  1990