From f246fb2fc2b7bc04e9504dc0705a63d74a6c90ce Mon Sep 17 00:00:00 2001
From: Tony Metzidis <anthony.metzidis@gmail.com>
Date: Sun, 19 Jan 2020 02:42:10 -0800
Subject: Show error message when failed to start preview command (#1810)

Fix #1637
---
 README.md | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

(limited to 'README.md')

diff --git a/README.md b/README.md
index 4ee7d100..7d360654 100644
--- a/README.md
+++ b/README.md
@@ -480,7 +480,8 @@ See *KEY BINDINGS* section of the man page for details.
 ### Preview window
 
 When `--preview` option is set, fzf automatically starts an external process with
-the current line as the argument and shows the result in the split window.
+the current line as the argument and shows the result in the split window. Your
+`$SHELL` is used to execute the command with `$SHELL -c COMMAND`
 
 ```bash
 # {} is replaced to the single-quoted string of the focused line
-- 
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