Shell Programming and Scripting

I have files named like ABAB09s099E1AAV1.pdf and ABAB09s099E2AAV1.pdf in a directory. I need to add _Lop in the end of the name, like ABAB09s099E1AAV1_Lop.pdf for all files. For files with E2 in the name I also have to replace 99 with 88 in the filename, that would be ABAB09s088E2AAV1_Lop.pdf

I have solved the _Lop part in a bash script like this:

Code:

#!/bin/bash
#
cd /home/incoming/From_ABAB
for i in *.pdf
  do mv "$i" "${i/.pdf}"_Lop.pdf
done

Can anybody please help me with the replacement for E2 files ?

Code:

for f in *.pdf; do
  fn=${f%.*} ext=${f##*.}
  case $f in
    (*E2*) mv -- "$f" "${fn/99/88}_Lop.$ext";;
    (*)    mv -- "$f" "${fn}_Lop.$ext";; 
  esac
done

That worked fine!

Thank you wery much Radoulov

Code:

#!/usr/bin/env ruby  

Dir["*.pdf"].each do |x|
 n=x.sub(/.pdf$/,"_Lop.pdf")
 File.rename(x, n )
 File.rename(n, n.sub(/99/,"88") ) if n =~ /E2/
end