Rename tgz files into another names based on a two columns in text file-CodePudding

I have a folder that contains files like this :

s-10.tgz  s-11.tgz  s-12.tgz

and a text file as follows :

s-10 Tom
s-11 Harry 
s-12 Peter

How to rename the files to

Tom.tgz Harry.tgz Peter.tgz

based on the text file.

CodePudding user response：

One way is to read the file and then do a substring expansion. Only works if there are no spaces in the filenames though.

while read line;do echo "${line% *}.tgz" "${line##* }.tgz" ;done < file
s-10.tgz Tom.tgz
s-11.tgz Harry.tgz
s-12.tgz Peter.tgz

Replace echo with mv if everything looks ok.