examplescripts/Example8: Use 'command -v' builtin instead of 'which'.

git-svn-id: http://svn.code.sf.net/p/smartmontools/code/trunk@5404 4ea69e1a-61f1-4043-bf83-b5c94c648137

smartmontools/ChangeLog

@@ -2,6 +2,8 @@ $Id$
 
 2022-08-06  Christian Franke  <franke@computer.org>
 
+	examplescripts/Example8: Use 'command -v' builtin instead of 'which'.
+
 	Detect accidental use of smartd_warning script in '-M exec'.
 	smartd.cpp: Set SMARTD_SUBJECT to empty.
 	smartd_warning.sh.in, os_win32/smartd_warning.cmd: Abort if

smartmontools/examplescripts/Example8

@@ -13,9 +13,10 @@
 test -n "$SMARTD_ADDRESS" || exit 0
 
 # Try mail[x]
+# Note: The 'command -v' builtin requires a POSIX >= 2008 conforming shell
 for mailer in \
-  $(which mail 2>/dev/null) \
-  $(which mailx 2>/dev/null) \
+  $(command -v mail 2>/dev/null) \
+  $(command -v mailx 2>/dev/null) \
   /usr/bin/mail \
   /usr/bin/mailx
 do