Use better pipe check

diff --git a/plugins/autojump b/plugins/autojump
index db10c84a8e463c14a3636796c50a1ab982e0aea4..8f058d0bdff85a9b8a42f4a72474bf4f936258bd 100755 (executable)
--- a/plugins/autojump
+++ b/plugins/autojump
@@ -11,7 +11,7 @@
 # Shell: POSIX compliant
 # Authors: Marty Buchaus, Dave Snider, Tim Adler
 
-if [ -z "$NNN_PIPE" ]; then
+if [ ! -p "$NNN_PIPE" ]; then
     echo 'ERROR: NNN_PIPE is not set' | ${PAGER:-less}
     exit 2
 fi