Shell Programming and Scripting

#!/bin/bash
for fname in *.mp3; do
    echo item: $fname
    mv -f $fname ${fname#*-}
done

user@intel-computer:~/Music/tmp$ ./trim_filename.sh
item: 01 - Bad Romance.mp3
mv: target `Romance.mp3' is not a directory
item: 01 - Just Dance.mp3
mv: target `Dance.mp3' is not a directory
item: 02 - Alejandro.mp3
mv: target `Alejandro.mp3' is not a directory
item: 02 - LoveGame.mp3
mv: target `LoveGame.mp3' is not a directory
item: 03 - Paparazzi.mp3
mv: target `Paparazzi.mp3' is not a directory
item: 04 - Poker Face.mp3
mv: target `Face.mp3' is not a directory
item: 05 - Dance In the Dark.mp3
mv: target `Dark.mp3' is not a directory
item: 06 - Telephone.mp3
mv: target `Telephone.mp3' is not a directory
user@intel-computer:~/Music/tmp$

mv -f "$fname" "${fname#*-}"

#!/bin/bash
for fname in *.mp3; do
    mv -f "$fname" "${fname#*- *}"
done