Rename a fileparsing fie name from a diferent file

[pahad]

I have a file with the following format
1000 customers
2000 advisors
3000 visitors


the first column is actual list of files located in one directory. I have to parse the above file and change the file name to the corresponding name in second column.
something like /var/tmp/1000 /var/tmp/customers

I appreciate your help.

pahad

 

[predamarcel]

works with sh (and bash)

export FROM_D="/var/tmp/"
export TO_D="/var/tmp/"
cat inputfile | while read FROM TO
do
mv ${FROM_D}/${FROM} ${TO_D}/${TO}
done