xtman · March 8, 2012 00:51
diff --git a/stderr_stdout_redirection.sh b/stderr_stdout_redirection.sh
 #    redirect stdout to a file
 cat 1.txt > r.txt

 #    redirect stderr to a file
 grep "error" 1.log 2> r.txt 

 #    redirect stdout to a stderr
 grep * 1>&2

 #    redirect stderr to a stdout
 grep * 2>&1

 #    redirect stderr and stdout to a file (often used in cron job)
 grep * &> /dev/null
	# redirect stdout to a file
	cat 1.txt > r.txt

	# redirect stderr to a file
	grep "error" 1.log 2> r.txt

	# redirect stdout to a stderr
	grep * 1>&2

	# redirect stderr to a stdout
	grep * 2>&1

	# redirect stderr and stdout to a file (often used in cron job)
	grep * &> /dev/null