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Top Forums Shell Programming and Scripting awk and gsub - how to replace only the first X occurrences Post 302456526 by quirkasaurus on Friday 24th of September 2010 12:01:10 PM
Old 09-24-2010
oops. sorry. didn't notice that.

Code:
cat text.txt |
awk '{
  if ( count < 2 ){
    gsub("CAR","REPLACE")
    count++
    }
  print
  }'

Code:
output:
REPLACE sweet head
hat red yellow
CAR book brown
tiger CAR cow CAR
CAR milk

 

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DwtSTextReplace(3Dwt)													     DwtSTextReplace(3Dwt)

Name
       DwtSTextReplace - Replaces a portion of the current text string in the simple text widget or inserts a new substring in the text.

Syntax
       void DwtSTextReplace(widget, from_pos, to_pos, value)
	    Widget widget;
	    int from_pos, to_pos;
	    DwtCompString value;

Arguments
       widget	 Specifies the ID of the simple text widget whose text string you want to replace.

       from_pos  Specifies the beginning character position within the text string marking the text being replaced.

       to_pos	 Specifies the last character position within the text string marking the text being replaced.

       value	 Specifies the text to replace part of the current text in the simple text widget.

Description
       The  DwtSTextReplace  function  replaces  part of the text string in the simple text widget.  Within the window, the positions are numbered
       starting from 0 and increasing sequentially.  For example, to replace the second and third characters in the string, from_pos should  be  1
       and to_pos should be 3.	To insert a string after the fourth character, from_pos and to_pos should both be 4.

See Also
       DwtSText(3Dwt),  DwtSTextGetString(3Dwt),  DwtSTextGetEditable(3Dwt),  DwtSTextSetEditable(3Dwt), DwtSTextGetMaxLength(3Dwt), DwtS-
       TextSetMaxLength(3Dwt), DwtSTextSetSelection(3Dwt), DwtSTextClearSelection(3Dwt), DwtSTextGetSelection(3Dwt)
       Guide to the XUI Toolkit: C Language Binding
       Guide to the XUI Toolkit Intrinsics: C Language Binding

															     DwtSTextReplace(3Dwt)
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