convert all *.m files cp-1251 to utf8

convert-all-matlab-files-to-linux.sh

#!/bin/bash

set -u -o pipefail

if [[ -z "${1-}" ]]; then
  echo "$0 <dir>" >&2
  exit 1
else
  DIR=$(readlink -f "$1")
fi

if [[ ! -d "$DIR/backup" ]]; then
  echo "Backing up..."
  rsync -vr . "$DIR/backup"
else
  read -r -s -p "Run twice in same dir. Are you sure? (Ctrl+C to cancel) " key
fi

find "$DIR" -type f -name "*.m" | while read line; do
    echo "Precessing $old_path ..."
    old_path=$line
    new_path=$line-new

    iconv -f WINDOWS-1251 -t utf8 "$old_path" -o "$new_path"
    mv "$new_path" "$old_path"
done