From f5e181c2723948e7fba262900d4bd0ec8da7975f Mon Sep 17 00:00:00 2001
From: Jeremy Kaplan <jkaplan@memsql.com>
Date: Wed, 3 Oct 2018 11:49:21 -0700
Subject: [PATCH] Offsets for CLI guru

---
 bin/offset | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100755 bin/offset

diff --git a/bin/offset b/bin/offset
new file mode 100755
index 0000000..1956180
--- /dev/null
+++ b/bin/offset
@@ -0,0 +1,22 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+if [ "$#" -lt 3 ]; then
+    cat <<-USAGE
+Usage: $0 filename line column
+USAGE
+    exit 1
+fi
+
+fname="$1"
+linum="$(("$2"))"
+beforelines="$((linum - 1))"
+colnum="$3"
+beforecols="$((colnum - 1))"
+
+offset=$({
+head --quiet --lines "$beforelines" "$fname"
+sed -n "${linum}p" "$fname" | awk '{ print substr($0,0,'"$beforecols"') }'
+} | wc -c)
+echo "$((offset - 1))"