From cc68e1c2ea0d685072b4063aeb9af50f7e42cd98 Mon Sep 17 00:00:00 2001
From: Abigail <abigail@abigail.be>
Date: Tue, 26 Jan 2021 02:09:46 +0100
Subject: Bash solution for week 097, part 2

---
 challenge-097/abigail/README.md    |  1 +
 challenge-097/abigail/bash/ch-1.sh | 29 +++++++++++++++++++++++++++++
 2 files changed, 30 insertions(+)
 create mode 100644 challenge-097/abigail/bash/ch-1.sh

diff --git a/challenge-097/abigail/README.md b/challenge-097/abigail/README.md
index 9eec07616d..bd64d4cbbe 100644
--- a/challenge-097/abigail/README.md
+++ b/challenge-097/abigail/README.md
@@ -24,6 +24,7 @@ We will be reading the plain text from STDIN, and use an option (-s)
 to indicate the left shift.
 
 ### Solutions
+* [Bash](bash/ch-1.sh)
 * [Node.js](node/ch-1.js)
 * [Perl](perl/ch-1.pl)
 
diff --git a/challenge-097/abigail/bash/ch-1.sh b/challenge-097/abigail/bash/ch-1.sh
new file mode 100644
index 0000000000..e51ebe5562
--- /dev/null
+++ b/challenge-097/abigail/bash/ch-1.sh
@@ -0,0 +1,29 @@
+#!/bin/sh
+
+#
+# See ../README.md
+#
+
+#
+# Run as: bash ch-1.sh -s SHIFT < input-file
+#
+
+#
+# Read the option
+#
+while getopts "s:" name
+do  if [ "$name" = "s" ]
+    then shift=$OPTARG
+    fi
+done
+
+
+#
+# Iterate over the input, shifting each line as many times as needed
+#
+while read line
+do    for ((i = 0; i < $shift; i ++))
+      do line=`echo $line | tr A-Z ZA-Y`
+      done
+      echo $line
+done
-- 
cgit