"2>&1" He Italy? ? ? For example, Command, "output.txt 2>&1 He last 2>&1 Italy? ? ? "2>&1" He Italy? ? ? Question 13 : The 11 reference shell Http://www.lslnet.com/linux/#forum/viewtopic.php?p=1636825#1636825 "2>&1" He Italy? ? ? One of the shells found in the book Programming Affixed to tell everyone to see : [code] Redirection orders documents used in Table 5-1 Command "put the standard filename output redirection to a new document Command, "" Redirecting output filename put to a standard document (added) 1 command "fielname put a document to the standard output Redirection Command, "filename 2>&1 put together the standard output and standard error Redirection to a document Command 2 "filename regard to a document standard error Redirection Command 2, "" Redirecting output filename put to a standard document (added) Command "," filename 2>&1 put together the standard output and standard error Redirection to a document (added) Command "filename" filename2 regard as a standard paper input filename command in order to document filename 2 As a standard output Command "filename command orders to regard as a standard paper input filename Command "" delimiter read from standard input into until faced dividing line delimiter symbol Command "put Wenjianmiaoshufu &m regard as a standard input m Command, "&m regard to the standard output redirection Wenjianmiaoshufu m Command "＆-closure for standard input [/code] Thank you, pull! But I do not go to see traditional habit has been downloaded ~ ~ you ask simplified version of the 13 ~ ~ ~ see slowly [ Closed window ]