From ad731ecebb9360583f7175b9ec9f1f0e1cbaff69 Mon Sep 17 00:00:00 2001
From: Alexander Bocken <alexander@bocken.org>
Date: Thu, 28 Jan 2021 15:39:34 +0100
Subject: [PATCH] deleting last line now possible in script

---
 readings_index/lesungen_script | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/readings_index/lesungen_script b/readings_index/lesungen_script
index 1388bdc..0ac4996 100755
--- a/readings_index/lesungen_script
+++ b/readings_index/lesungen_script
@@ -3,13 +3,22 @@ if [ -n "$1" ]; then
 	printf "start at reading no. L-"
 	read -r start_no
 else
-	start_no="$(tail -n1 readings_index | cut -f3)"
+	last_line="$(tail -n1 readings_index)"
+	echo "$last_line"
+	start_no="$( echo "$last_line" | cut -f3)"
 fi
-for ((n=$start_no;n<=4000;n++)); do
+for ((n=start_no;n<=4000;n++)); do
 	printf "index of reading no. L-%s:" "$n"
 	read -r index
 	if [ "$index" = "" ]; then
 		continue
+	elif [ "$index" = "d" ]; then
+		echo "deleting last line"
+		grep -v "$(tail -n1 readings_index)" readings_index > tmp$$
+		mv tmp$$ readings_index
+		last_line="$(tail -n1 readings_index)"
+		echo "$last_line"
+		n="$(( n - 2 ))";
 	elif [ "$index" -gt 2200 ]; then
 		echo "Kanji from third book. Just adding index and reading index for now"
 		printf '%s\t\t%s\n' "$index" "$n" | tee -ai readings_index