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Top Forums Shell Programming and Scripting Help with a For loop and variables Post 302570561 by Corona688 on Thursday 3rd of November 2011 03:18:26 PM
Old 11-03-2011
That's a dangerous use of backticks and useless use of cat. A 'while read' loop will be safer and faster.

You also don't need to reopen the same file 9000 times when processing 9000 IP addresses -- you can redirect the input and output of entire code blocks once instead of things inside them over and over.

Yes, store the result in a variable then print them both.

Code:
while read IP
do
        COUNTRY=$(whois "$IP" | grep -i "country:")
        echo "$IP: $COUNTRY"
done < ip.txt > out.txt

This User Gave Thanks to Corona688 For This Post:
 

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Ns_ConnReturn(3aolserver)				   AOLserver Library Procedures 				 Ns_ConnReturn(3aolserver)

__________________________________________________________________________________________________________________________________________________

NAME
Ns_ConnRedirect - Internally redirect a request to a new local url SYNOPSIS
#include "ns.h" int Ns_ConnRedirect(conn, url) ARGUMENTS
Ns_Conn conn (in) Pointer to open connection. char *url (in) Pointer to string of local url. _________________________________________________________________ DESCRIPTION
This routine can be used to internally redirect to a new, local url on the server. The url paramter specifies a path relative to the server, i.e., without the leading "http://host:port" portion. The server will reset the Ns_Request structure in the open connection pointed to by conn and restart connection handling, including authorization checks. The result is a standard AOLserver request procedure result code, either from an underlying call to Ns_ConnRunRequest or the result of one of the authorization response routines such as Ns_ConnReturnForbidden. Filter callbacks, if any, are not run again with the updated connection. The Ns_ConnRedirect routine is used internally in the server to support the basic file serving code (i.e., "fastpath") to redirect to spe- cific files when a directory is opened and by the Ns_RegisterRedirect routine to map standard reponse routines to user-provided local url's. EXAMPLE
The following example demonstrates redirecting to an ADP help page within a custom C-level request callback whenever a ?help=topic query argument is present: int MyRequest(void *arg, Ns_Conn *conn) { Ns_Set *query = Ns_ConnGetQuery(conn); /* Redirect to help.adp for /myrequest?help=topic calls. */ if (Ns_SetGet(query, "help")) != NULL) { return Ns_ConnReturnRedirect(conn, "/help.adp"); } ... handle non-help requests ... } SEE ALSO
Ns_RegisterRedirct(3), Ns_ConnRunRequest(3), Ns_AuthorizeRequest(3) KEYWORDS
connection, redirect AOLserver 4.0 Ns_ConnReturn(3aolserver)
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