scripts

commit 2020d7fff6a92c733343ed33ac531105bb14444e
parent 35cbd6418275d716ec566c9a28c0bbca6e2ca96b
Author: gearsix <gearsix@tuta.io>
Date:   Fri, 26 Aug 2022 10:36:31 +0100

added nix/onfilech

Diffstat:
A
nix/onfilech.sh
 | 
19
+++++++++++++++++++

1 file changed, 19 insertions(+), 0 deletions(-)
diff --git a/nix/onfilech.sh b/nix/onfilech.sh
@@ -0,0 +1,19 @@
+#!/usr/bin/env sh
+# on file change
+# description: when a file ($1) modified time is updated, perform $2..
+# dependencies: stat
+# e.g.$ onfilech draft-plans.txt cp draft-plans.txt new-plans.txt
+
+file=$1; shift
+cmd=$*
+
+while true; do
+	mod=$(stat "$file");
+	while [ "$mod" != false ]; do
+		upd=$(stat "$file");
+		if [ "$upd" != "$mod" ]; then
+			$cmd; echo update; mod=false;
+		fi;
+		sleep 10;
+	done;
+done;