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Redirection of show Command Output

You can redirect the output of show commands to network files or local files (in NVS memory) using the redirection operators described in Table 5 .

Table 5: Redirect Operators

Redirect Operator	Use
>	Redirects output to the specified file, overwriting the file if it already exists, creating the file if it does not.
>>	Appends output to the end of the specified file, creating the file if it does not exist.
&>	Redirects output to the specified file, overwriting the file if it already exists, and displays the output on the screen. The redirection is synchronized with the screen display; for example, if a --More-- prompt appears, the redirection halts until you take further action.
&>>	Appends output to the end of the specified file and displays the output to the screen. The redirection is synchronized with the screen display; for example, if a --More-- prompt appears, the redirection halts until you take further action.

For example, you can redirect the output of the show config command to a script file and later run that script:



host1#show config > showconfig.scr

The following command writes the output to a text file, version.txt, on a remote router:



host1#show hardware > pc:/erxfiles/version.txt

The following command appends the output to version.txt:



host1#show hardware >> version.txt

Only one instance of a file can be open for file redirection. An error message is generated if you attempt to redirect output to a file that is already open. You cannot redirect output to a file that includes a local path in the filename.

You can use redirection with output filtering. The general syntax is:



 
show options [ { > | >> | &> | &>> } filename  ] 
[ | { begin | include | exclude } filterstring ]

The filtering is performed before redirection. In the following example, the cnfgfltr.txt file will contain the output of show config include-defaults beginning with the first occurrence of the string inter.



host1#show config include-defaults &>
cnfgfltr.txt | begin inter

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