env-share: added git-bash companion script

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

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
+

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