From 6162960230636655187ecfc04a16247689651226 Mon Sep 17 00:00:00 2001
From: John-Mark Gurney <jmg@funkthat.com>
Date: Mon, 16 May 2022 14:38:58 -0700
Subject: [PATCH] add script to display how fast a file is being appended to...

useful for monitoring speed when a program doesn't have it's output,
or you silenced it's status for reasons..
---
 filespeed | 38 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)
 create mode 100755 filespeed

diff --git a/filespeed b/filespeed
new file mode 100755
index 0000000..2aefd25
--- /dev/null
+++ b/filespeed
@@ -0,0 +1,38 @@
+#!/bin/sh -
+
+if [ x"$#" = x"2" -a x"$1" = x"-c" ]; then
+	continueous=1
+	shift
+fi
+
+if [ x"$#" != x"1" ]; then
+	echo "Usage: $0 <file>"
+	exit 2
+fi
+
+if ! [ -f "$1" ]; then
+	echo "$1" does not exist!
+	exit 1
+fi
+
+if [ $continueous = 1 ]; then
+	lastls=$(ls -l "$1")
+	while sleep 1; do
+		nextls=$(ls -l "$1")
+		( echo "$lastls"; echo "$nextls") |
+		grep -v '^total' |
+		awk '{ ar[NR] = $5 }
+			END { bytes = ar[2] - ar[1];
+			bytespersec = bytes;
+			print bytespersec / 1024 / 1024 }'
+
+		lastls="$nextls"
+	done
+else
+	( ls -l "$1"; sleep 5; ls -l "$1") |
+		grep -v '^total' |
+		awk '{ ar[NR] = $5 }
+			END { bytes = ar[2] - ar[1];
+			bytespersec = bytes / 5;
+			print bytespersec / 1024 / 1024 }'
+fi