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Top Forums Shell Programming and Scripting Using sed to find text between a "string " and character "," Post 302581653 by haggismn on Tuesday 13th of December 2011 06:07:15 PM
Old 12-13-2011
I am scanning for IP addresses from a log file. The logfile being scanned contains the sets of IPs and the correct delimiters on the same line, but that line is never in a set place.

Code:
line x
line y
aaabbb ccc-ddd string ipaddress,eee string ipaddress2,fff string ipaddress3,ggg
line z

This line is then repeated further on. Its not needed really but is scanning the lines in reverse order possible?

The results then need to be output in the form of "string2 ipaddress", taking a new line each time with 2 or 3 in total. A script will be necessary there won't it?

Currently I am getting all the instances of ipaddress3 in the log file
Thanks again

Last edited by haggismn; 12-13-2011 at 07:18 PM..
 

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gets(n) 						       Tcl Built-In Commands							   gets(n)

__________________________________________________________________________________________________________________________________________________

NAME
gets - Read a line from a channel SYNOPSIS
gets channelId ?varName? _________________________________________________________________ DESCRIPTION
This command reads the next line from channelId, returns everything in the line up to (but not including) the end-of-line character(s), and discards the end-of-line character(s). If varName is omitted the line is returned as the result of the command. If varName is specified then the line is placed in the variable by that name and the return value is a count of the number of characters returned. If end of file occurs while scanning for an end of line, the command returns whatever input is available up to the end of file. If chan- nelId is in nonblocking mode and there is not a full line of input available, the command returns an empty string and does not consume any input. If varName is specified and an empty string is returned in varName because of end-of-file or because of insufficient data in non- blocking mode, then the return count is -1. Note that if varName is not specified then the end-of-file and no-full-line-available cases can produce the same results as if there were an input line consisting only of the end-of-line character(s). The eof and fblocked commands can be used to distinguish these three cases. SEE ALSO
file(n), eof(n), fblocked(n) KEYWORDS
blocking, channel, end of file, end of line, line, nonblocking, read Tcl 7.5 gets(n)
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