Rename files using bash/regex?

问题

I have files named:

test-12.5.0_567-release.apk

I want them to look like:

test-release.apk

I realized I can do it with bash:

for file in *release.apk; do
  mv "$file" "`basename $file SOMETHING`NEW_FILE_NAME"; done

It needs some regex I guess ? How would it look like ?

Thanks !

回答1:

You can do:

for file in *release.apk; do
  mv "$file" "${file/-*-/-}"
done

回答2:

Alternatively you can use this:

for file in *release.apk; do
    mv "$file" "${file%-*-*}-release.apk"

I'm removing -12.5.0_567-release.apk and then add -release.apk.

However, IMHO anubhava's solution looks better since it is more precisely doing what you want.

回答3:

Another alternative, with an actual regex and capturing groups. It uses the =~ operator and the BASH_REMATCH array (containing the captured sub groups)

for file in *; do
  # check if the filename matches the regex and extract 2 groups
  if [[ $file =~ ([^-]*-).*-([^-]*) ]]; then
    # use the captured groups
    mv "$file" "${BASH_REMATCH[1]}${BASH_REMATCH[2]}";
  fi
done

回答4:

You can use a regex with the rename command:

rename 's/-*-/-/g' *release.apk

来源：https://stackoverflow.com/questions/35625458/rename-files-using-bash-regex