Ans: It is a black hole. For example, in the earlier example, if you want to ignore error like "sh: cd: Temp: No such file or directory" being printed, you can redirect your output to /dev/null. For example

1 $ cd temp > /dev/null 2>&1 && echo $(Pwd)

 

Will fail silently and nothing will be printed if there is no "temp" folder. The message has gone into the black hole. If there is a "temp" folder, the present working directory (i.e. Pwd) will be printed out.