I have files available in a directory as:
filename15_1 filename15_2 filename15_3 filename15_4
And so on.
I have another file that contains mapping information for how I want to rename the files. This is a CSV file.
filename15_1,filename30_6 filename15_2,filename30_7 filename15_3,filename60_3 filename15_4,filename60_4 filename15_5,filename60_5 filename15_6,filename60_6
I want to rename the four files by reading the above mapping. Mapping files is having more information than the actual files present in the directory.
My files should be renamed to the following.
filename30_6 filename30_7 filename60_3 filename60_4
How can I do this?
Note: I am a database-background person and have little knowledge in Unix.