For loop to sort multiple files with output file for each

for file in *.txt;
do
[ -f "$file" ] && printf 'Processing %s\n' "$file"
[[ "$file" == *?.* ]] && # If file has a period after at least one character; filters out .bashrc and similar
file1="./${file%.*}_sorted.${file##*.}" || # For files with extensions ($file becomes file1)
file1="${file}_sorted"
# For files without extensions ($file becomes file1)
LC_ALL=C sort -u "$file" > "./$file1"
done