2006-12-07

C shell重導符號

>    redirect stdout to file
>>   redirect stdout to end of file
>&   redirect stdout and stderr to file
>>&  redirect stdout and stderr to end of file
>!   redirect stdout to file, even $noclobber has been set
>>!  redirect stdout to end of file, even $noclobber has been set
>&!  redirect stdout and stderr to file, even $noclobber has been set
>>&! redirect stdout and stderr to end of file, even $noclobber has been set