Shell Script – Rename All Files In The Current Folder

Here is a shell script which can help you to rename all files in the current folder.

You should input two strings as parameters for the script.

Usage example:

bash rename.sh ' ' '-'

It will rename all files which name contains space, these speaces will be changed to ‘-‘.

Rename.sh

#!/bin/bash

if [ $# -ne 2 ]; then
  echo "Usage: $0 <old_string> <new_string>"
  echo "Example: $0 'A4打印' 'printing on A4 paper'"
  exit 1
fi

old_string="$1"
new_string="$2"

current_dir=$(pwd)

for file in "$current_dir"/*; do
  if [ -f "$file" ]; then
    filename=$(basename "$file")

    new_filename=$(echo "$filename" | sed "s/$old_string/$new_string/g")    # $old_string can be regex_pattern

    if [ "$filename" != "$new_filename" ]; then
      mv "$file" "$current_dir/$new_filename"
      echo "Renamed: $filename -> $new_filename"
    fi
  fi
done

echo "Batch renaming completed."

You can also use regular expression for the old string parameter!

Enjoy it: