Cheat sheet exhibiting bash shell stdout/stderr redirection behavior

Question

Is there a good cheat sheet demonstrating the many uses of BASH shell redirection? I would love to give such a thing to my students. Some examples I'd like to see covered:

cmd > output_file.txt       #redirect stdout to output_file.txt
cmd 2> output_file.txt      #redirect stderr to output_file.txt
cmd >& outpout_file.txt     #redirect both stderr and stdout to output_file.txt
cmd1      | cmd2            #pipe cmd1 stdout to cmd2's stdin
cmd1 2>&1 | cmd2            #pipe cmd1 stdout and stderr to cmd2's stdin
cmd1      | tee result.txt  #print cmd1's stdout to screen and also write to result.txt
cmd1 2>&1 | tee result.txt  #print stdout,stderr to screen while writing to result.txt

(or we could just make this a community wiki and enumerate such things here)

Thanks!

SetJmp

Answer 1

http://wiki.linuxquestions.org/wiki/Bash-operators

Answer 2

you can also look at Advanced Bash Guide

Answer 3

Though not a cheat sheet, there is an excellent discussion here.

Answer 4

http://tldp.org/LDP/abs/html/process-sub.html

Your students might appreciate a little bit of process substitution as well. It's very closely related to IO redirection.

Edit: It looks like Dennis Williamson's link already talks about process substition :)