config

commit 1d8d1928698169af9857b9c0d73d5f8e34169759
parent e9079e7f01278ccac453c6aab27c1324c99dbbcb
Author: Jacob R. Edwards <n/a>
Date:   Tue,  9 Nov 2021 13:58:33 -0800

Add portable line shuffling script

Diffstat:
A
local/bin/bin/shf
 | 
16
++++++++++++++++

1 file changed, 16 insertions(+), 0 deletions(-)
diff --git a/local/bin/bin/shf b/local/bin/bin/shf
@@ -0,0 +1,16 @@
+#!/usr/bin/awk -f
+# Copyright 2021 Jacob R. Edwards
+# Shuffle lines with standard awk
+
+{ x[NR - 1] = $0 }
+
+END {
+	srand();
+	while (--NR >= 0) {
+		i = int(rand() * NR);
+		print x[i];
+		delete x[i];
+		x[i] = x[NR];
+		delete x[NR];
+	}
+}