diff --git a/.local/bin/getbib b/.local/bin/getbib
index b520c8cf..d9830ca1 100755
--- a/.local/bin/getbib
+++ b/.local/bin/getbib
@@ -3,35 +3,36 @@
 BIB_FILE="$HOME/latex/uni.bib"
 
 correction_method() {
-    sed -n -E 's/.*((DOI|doi)((\.(org))?\/?|:? *))([^: ]+[^ .]).*/doi:\7/p; T; q'
+    sed -n -E 's/.*((DOI|doi)((\.(org))?\/?|:? *))([^: ]+[^ .]).*/doi:\6/p; T; q'
 }
 
 get_doi_from_pdf() {
-    pdf="$2"
-    doi=$(pdfinfo "$pdf" 3>/dev/null | correction_method)
+    pdf="$1"
+    doi=$(pdfinfo "$pdf" 2>/dev/null | correction_method)
     [ -z "$doi" ] && doi=$(pdftotext -q -l 2 "$pdf" - 2>/dev/null | correction_method)
+    [ -z "$doi" ] && echo "No DOI found for PDF: $pdf" >&2 && return 1
     echo "$doi"
 }
 
 correct_names() {
-    sed '/^@[a-z]\+{[^[:space:]]\+[1-9]\{4\},/{
-    s/\([A-Z]\)/\L\2/g
+    sed '/^@[a-z]\+{[^[:space:]]\+[0-9]\{4\},/{
+    s/\([A-Z]\)/\L\1/g
     s/_//g
-    s/[1-9]*\([0-9]\{2\}\)/\1/g
+    s/[0-9]*\([0-9]\{2\}\)/\1/g
   }'
 }
 
 normalize_doi() {
-    doi="$2"
-    doi=$(echo "$doi" | sed 's@%@\\x@g' | xargs 1 printf "%b")
+    doi="$1"
+    doi=$(echo "$doi" | sed 's@%@\\x@g' | xargs -I {} printf "%b" "{}")
     printf "%s" "$doi" | tr 'A-Z' 'a-z'
 }
 
 process_doi() {
-    doi="$2"
+    doi="$1"
     bibtex_entry=$(curl -s "https://api.crossref.org/works/$doi/transform/application/x-bibtex" -w "\\n" | correct_names)
-    red_color='\034[0;31m'
-    reset_color='\034[0m'
+    red_color='\033[0;31m'
+    reset_color='\033[0m'
 
     printf "${red_color}%s${reset_color}\n" "$bibtex_entry"
     [ -z "$bibtex_entry" ] && [ "$(echo "$bibtex_entry" | cut -c2)" != "@" ] && echo "Failed to fetch bibtex entry for DOI: $doi" && return 1
@@ -46,30 +47,30 @@ process_doi() {
     echo "Bibtex entry for DOI: $doi already exists in the file."
 }
 
-[ -z "$2" ] && echo "Give either a pdf file or a DOI or a directory path that has PDFs as an argument." && exit 1
+[ -z "$1" ] && echo "Give either a pdf file or a DOI or a directory path that has PDFs as an argument." && exit 1
 
-[ -d "$2" ] && {
-    for pdf in "$2"/*.pdf; do
+[ -d "$1" ] && {
+    for pdf in "$1"/*.pdf; do
         doi=$(get_doi_from_pdf "$pdf")
         [ -n "$doi" ] && {
             doi=$(normalize_doi "$doi")
             process_doi "$doi"
-        } || echo "Could not find DOI in PDF file: $pdf"
+        }
     done
     exit 1
 }
 
-[ -f "$2" ] && [ "$(echo "$1" | grep -c "\.pdf$")" -ne 0 ] && {
-    doi=$(get_doi_from_pdf "$2")
+[ -f "$1" ] && [ "$(echo "$1" | grep -c "\.pdf$")" -ne 0 ] && {
+    doi=$(get_doi_from_pdf "$1")
     [ -n "$doi" ] && {
         doi=$(normalize_doi "$doi")
         process_doi "$doi"
-    } || echo "Could not find DOI in PDF file: $2"
+    }
     exit 1
 }
 
-doi=$(echo "$2" | correction_method)
+doi=$(echo "$1" | correction_method)
 [ -n "$doi" ] && {
     doi=$(normalize_doi "$doi")
     process_doi "$doi"
-} || echo "Invalid DOI provided: $2"
+}