Bash script to translate SRT files in the current directory into another language using Google Translate

spanish.sh

#!/bin/bash

languageName='Spanish'
language='es'

for file in *.srt; do
  if [[ $file == *.$language.srt ]]; then
    # Skip processing of already translated files
    continue
  fi
  if [ ! -f "${file%.*}.$language.srt" ]; then
    # Read input file and translate if necessary
    echo "Translating $file to $languageName..."
    while read -r line; do
      if [[ "$line" =~ [a-z] ]] ; then
        translated=$(echo "$line" | trans -brief ":$language")
        if [[ $? -ne 0 ]]; then
            echo "Error: Translation failed for '$line'. Skipping."
        else
            echo "$translated" >> "${file%.*}.$language.srt"
        fi
      else
        echo "$line" >> "${file%.*}.$language.srt"
      fi
    done < "$file"
  fi
done

echo "Translation complete."