Fix grep

{{cookiecutter.paper_repo_name}}/helpers/get-sentences.sh

@@ -6,10 +6,10 @@ method="$2"
 extract_text() {
     if [[ "$method" == "from-tex" ]]
     then
-        detex "$input_file" | egrep '\S' | grep -v 'unsrt' | perl -pne 's/^\s+| +$//g'
+        detex "$input_file" | grep -E '\S' | grep -v 'unsrt' | perl -pne 's/^\s+| +$//g'
     else
         bash helpers/pdf-to-plain-text.sh "$input_file" | perl helpers/strip-references.pl | perl -pne 'chomp $_; $_.=" "'
     fi
 }
 
-extract_text | python3 -m syntok.segmenter | egrep '\S'
+extract_text | python3 -m syntok.segmenter | grep -E '\S'