diff --git a/README.md b/README.md
index 2e0507a..4b5f887 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,11 @@
 These are tools I use to use Windows primarily through WSL. A lot of them
 assume you have PowerShell somewhere in your `PATH` as "`pwsh`".
 
+## `env-share`
+
+A hacked-together utility for sending WSL variables back to Windows
+shells. The utility runs in WSL, and companion scripts run in Windows.
+
 ## `mkwin`
 
 A Linux utility to quickly make a bash script to run a Windows executable with
diff --git a/env-share/scripts/env-share.sh b/env-share/scripts/env-share.sh
new file mode 100644
index 0000000..7746c76
--- /dev/null
+++ b/env-share/scripts/env-share.sh
@@ -0,0 +1,19 @@
+#!/usr/bin/bash
+
+#	make sure file is present
+file=$ENV_SHARE_FILE
+if [[ ! -r "$file" ]]; then
+	return
+fi
+
+#	read lines and set variables
+IFS=' = '
+while read line; do
+	var=${line%$IFS*}
+	value=${line#*$IFS}
+	export $var=$value
+done <$file
+
+#	delete file
+rm $file
+
diff --git a/man/env-share.1 b/man/env-share.1
index 607b6d3..5657d8e 100644
--- a/man/env-share.1
+++ b/man/env-share.1
@@ -9,7 +9,7 @@
 .Sh DESCRIPTION
 The
 .Nm
-utility writes environment variables to a file to be loaded by a script in the target process.
+utility writes environment variables to a file to be loaded by a companion script in the target process.
 .Sh ENVIRONMENT
 .Bl -tag -width Ds
 .It Ev ENV_SHARE_FILE