btm · August 14, 2013 17:35
diff --git a/gistfile1.txt b/gistfile1.txt
 # This error goes to STDERR
 $ asdfasdf
 -bash: asdfasdf: command not found

 # We redirect STDERR to STDOUT, but STDOUT to null, so we can use grep against STDERR
 $ asdfasdf 2>&1 >/dev/null | grep -q not ; echo $?
 0
	# This error goes to STDERR
	$ asdfasdf
	-bash: asdfasdf: command not found

	# We redirect STDERR to STDOUT, but STDOUT to null, so we can use grep against STDERR
	$ asdfasdf 2>&1 >/dev/null \| grep -q not ; echo $?
	0