Sandbox::https://github.com/muru/scripts/blob/master/rename-windows.sh

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#! /bin/bash

windows_chars='<>:"\|?*'

prefix="windows/"

# Find number of files/directories which has this name as a prefix

find_num_files ()

(

if [[ -e $prefix$1$2 ]]

then

shopt -s nullglob

files=( "$prefix$1-"*"$2" )

echo ${#files[@]}

)

# From http://www.shell-fu.org/lister.php?id=542

# Joins strings with a separator. Separator not present for

# edge case of single string.

str_join ()

(

IFS=${1:?"Missing separator"}

shift

printf "%s" "$*"

)

for i

# convert to lower case, then replace special chars with _

new_name=$(tr "$windows_chars" _ <<<"${i,,}")

# if a directory, make it, instead of copying contents

if [[ -d $i ]]

then

mkdir -p "$prefix$new_name"

echo mkdir -p "$prefix$new_name"

else

# get filename without extension

name_wo_ext=${new_name%.*}

# get extension

# The trick is to make sure that, for:

# "a.b.c", name_wo_ext is "a.b" and ext is ".c"

# "abc", name_wo_ext is "abc" and ext is empty

# Then, we can join the strings without worrying about the

# . before an extension

ext=${new_name#$name_wo_ext}

count=$(find_num_files "$name_wo_ext" "$ext")

name_wo_ext=$(str_join - "$name_wo_ext" $count)

cp "$i" "$prefix$name_wo_ext$ext"

echo cp "$i" "$prefix$name_wo_ext$ext"

done

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