#!/bin/bash

# Title:
# Bulk Renamer

# Author:
# By Dean Householder
# [email protected]
# 3/7/2014

# Description:
# This script will loop through all the files in a directory and rename them to match
# the name contained inside of a text file.  This makes it easy to bulk rename files
# by working iteratively in a single text file, until it contains a list of the file
# names you want.

# Instructions:
# 1) cd into the directory that contains a list of all the files you want to rename.
# 2) Type: \ls -1 ../replace.txt
# 3) cd ..
# 4) Edit replace.txt but don't change the order of any lines.
# 5) ./bulk-renamer.sh [directory of files to rename] replace.txt
# 6) If you don't like the results, just delete replace.txt and start over with step 1

# Additional Instructions:
# If you are careful, you can also rename just a subset of files in a directory
# by modifying step 2 to include a wildcard filter to the files you want to rename
# such as: *.mp3
# but you will also need to change the "for loop" below to use the same wildcard filter

# Usage: ./bulk-renamer.sh [directory to CD into] [path/to/replace.txt]


if [ -z "$1" ]; then
  echo "Usage: `basename $0` [dirname] [replace.txt]"
  echo -e "\nYou can view additional instructions inside the script source.\n"
  exit 1
fi

cd "$1"

count=0
for filename in *; do
  count=$(($count+1))
  replace=$(sed -n "$count,${count}p" "$2")
  mv "$filename" "$replace"
done

cd ..

Description:

This script will loop through all the files in a directory and rename them to match
the name contained inside of a text file.  This makes it easy to bulk rename files
by working iteratively in a single text file, until it contains a list of the file
names you want.

Instructions:

1) cd into the directory that contains a list of all the files you want to rename.

2) Type: \ls -1 ../replace.txt

3) cd ..

4) Edit replace.txt but don't change the order of any lines.

5) ./bulk-renamer.sh [directory of files to rename] replace.txt

6) If you don't like the results, just delete replace.txt and start over with step 1

Additional Instructions:

If you are careful, you can also rename just a subset of files in a directory by modifying step 2 to include a wildcard filter to the files you want to rename such as: *.mp3 but you will also need to change the "for loop" below to use the same wildcard filter

Usage: ./bulk-renamer.sh [directory to CD into] [path/to/replace.txt]

Bulk File Renamer

Bash