Strip multiple filenames of leading numbers and spaces

In bash. So that 001 file.ext becomes file.ext. How would I 开发者_StackOverflow中文版do that?

---

You can use two seds expressions. The first one removes everything upto the last space, and the second strips off leading digits.

$ echo "001 fiile.ext" | sed -e 's/^.* //' -e 's/^[0-9]*//g'
fiile.ext

---

for f in *file.ext
do
    newname=$(echo "$f" | sed 's/^[0-9 ]*//')
    mv "$f" "$newname"
done

Or in pure Bash:

shopt -s extglob
for f in *file.ext
do
    mv "$f" "${f##+([0-9 ])}"
done

---

If you just want to convert filenames (as vars in a script), you can just do something like:

[[ $FILENAME =~ ^[0-9\s]+(.+) ]] && FILENAME="${BASH_REMATCH[1]}"

If you're trying to actually rename filenames on the filesystem, something like this is more appropriate

for F in *.ext; do
  [[ $F =~ ^[0-9\s]+(.+) ]] && mv "$F" "${BASH_REMATCH[1]}"
done