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Top Forums Shell Programming and Scripting Search text file, then grep next instance of string Post 302556235 by Akilleez on Saturday 17th of September 2011 11:11:16 AM
Old 09-17-2011
Search text file, then grep next instance of string

I need to be able to search for a beginning line header, then use grep or something else to get the very next instance of a particular string, which will ALWAYS be in "Line5". What I have is some data that appears like this:

[1] Line1
Line2
Line3
Line4
Line5
Line6
Line7

[2] Line1
Line2
...

In my case, there are up to 1000 numbered beginner lines. I will be keying off of data from line 1, and I know the information I want is in Line5, every time. So, how do I search for the relevant beginning "Line1", then extract the next instance of "Line5" to use?

Thanks!
 

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XmTextFindString(3X)													      XmTextFindString(3X)

NAME
XmTextFindString - A Text function that finds the beginning position of a text string SYNOPSIS
#include <Xm/Xm.h> Boolean XmTextFindString (widget, start, string, direction, position) Widget widget; XmTextPosition start; char *string; XmTextDirection direction; XmTextPosition *position; DESCRIPTION
XmTextFindString locates the beginning position of a specified text string. This routine searches forward or backward for the first occur- rence of the string starting from the given start position. If it finds a match, the function returns the position of the first character of the string in position. Specifies the Text widget ID. Specifies the character position from which the search proceeds. This is an integer number of characters from the beginning of the text buffer. The first character position is 0. Specifies the search string. Indicates the search direction. It is relative to the primary direction of the text. The possible values are: The search proceeds toward the end of the text buffer. The search proceeds toward the beginning of the text buffer. Specifies the pointer in which the first charac- ter position of the string match is returned. This is an integer number of characters from the beginning of the buffer. The first charac- ter position is 0. If the function returns False, this value is undefined. For a complete definition of Text and its associated resources, see XmText(3X). RETURN VALUE
Returns True if a string match is found; otherwise, returns False. SEE ALSO
XmText(3X), XmTextFindStringWcs(3X) XmTextFindString(3X)
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