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Full Discussion: position specific replace in file
Top Forums Shell Programming and Scripting position specific replace in file Post 302600463 by greenworld123 on Tuesday 21st of February 2012 07:05:27 AM
Old 02-21-2012
position specific replace in file
How to replace the position specific values in the file..
i searched a lot the forums but i couldn't able to do...
i have file like below

Code:
576666666666666666666666666 7878 897987 121 0asdas Y12
5900fbb 777 09JJJ 78798347892374 234234234364 234232898
89HJHIHIGIUG989902743748327khjkhkjlh jggfsgf9898 90909090

1)In the first line i want to change from 18 position - 25 position to some other value- alpha numeric
2)if the line startd with 5900 then i should change 5 - 17 to some text

Simiar to other lines also ...with different positions

Need help on this
 

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LEARN ABOUT REDHAT

xmtextfieldreplace

XmTextFieldReplace(library call)										  XmTextFieldReplace(library call)

NAME

       XmTextFieldReplace -- A TextField function that replaces part of a text string

SYNOPSIS

       #include <Xm/TextF.h>
       void XmTextFieldReplace(
       Widget widget,
       XmTextPosition from_pos,
       XmTextPosition to_pos,
       char * value);

DESCRIPTION

       XmTextFieldReplace  replaces  part  of  the text string in the TextField widget. The character positions begin at 0 (zero) and are numbered
       sequentially from the beginning of the text.

       An example text replacement would be to replace the second and third characters in the text  string.  To  accomplish  this,  the  parameter
       from_pos must be 1 and to_pos must be 3. To insert a string after the fourth character, both parameters, from_pos and to_pos, must be 4.

       This  routine calls the widget's XmNvalueChangedCallback and verification callbacks, either XmNmodifyVerifyCallback or XmNmodifyVerifyCall-
       backWcs, or both. If both verification callback lists are registered, the procedures of the XmNmodifyVerifyCallback list are executed first
       and  the  resulting data is passed to the XmNmodifyVerifyCallbackWcs callbacks.	The XmNmotionVerifyCallback is generated if to_pos is less
       than or equal to the cursor position and the length of value is not the same as the length of the text being replaced,  or  if  the  cursor
       position is between from_pos and to_pos, and the distance from the cursor position to from_pos is greater than the length of value.

       widget	 Specifies the TextField widget ID

       from_pos  Specifies the start position of the text to be replaced

       to_pos	 Specifies the end position of the text to be replaced

       value	 Specifies the character string value to be added to the text widget

       For a complete definition of TextField and its associated resources, see XmTextField(3).

RELATED

       XmTextField(3).	XmTextFieldReplaceWcs(3).

														  XmTextFieldReplace(library call)
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