Shell Programming and Scripting

hello

does someone want to help me for this one ?


i want to rename file by inversing parts of filenames separated by the delimiter "--"



sometimes filenames have three strings :

Code:

aabb4ccdd eeffgg -- 5566 -- aa78bb ccd eef gghhi.ext

to

Code:

aa78bb ccd eef gghhi -- 5566 -- aabb4ccdd eeffgg.ext

Code:

aabbcc -- 55 -- aab667ccdd ee.ext

to

Code:

aab667ccdd ee -- 55 -- aabbcc.ext

Code:

556aa -- aabb -- 7788.ext

to

Code:

7788 -- aabb -- 556aa.ext

sometimes there are only two strings :

Code:

aabbccdd eef -- gghh iijjkkl.ext

to

Code:

gghh iijjkkl -- aabbccdd eef.ext

when there are two strings i think the solution is to inverse strings separated by "--"



i've got filename like these one too, i'd like to put the digits at at the end to the beginning :

Code:

aabbccdde -- ffgghh iijjkkll5566778.ext

to

Code:

5566778 aabbccdde -- ffgghh iijjkkll.ext

Code:

aab55c -- ddeeffgghh5566.ext

to

Code:

5566 aab55c -- ddeeffgghh.ext

thanks for you help !