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Full Discussion: How to read a file starting at certain line number?
Top Forums Shell Programming and Scripting How to read a file starting at certain line number? Post 302950850 by RavinderSingh13 on Wednesday 29th of July 2015 11:25:32 AM
Old 07-29-2015
Hello dcowboys13,

Welcome to forums, hope you will enjoy the learning/knowledge sharing here. Following is an example which may help you in same, you can take it as a start up and then can do some efforts from your side. let us know then where you get stuck so that we may guide you then, as we all are here for learning and helping.
Let's say we have following input file.
Code:
 cat test1
Hostname
Value1=abc
Value2=def
Value3=xyz
Hostname1
Value1=abc1
Value2=def1
Value3=xyz1
Hostname2
Value1=abc2
Value2=def2
Value3=xyz2

We want to read from 5th line out of 12 lines in input file. Then following is the script for same.
Code:
 cat test.ksh
 number=5
 awk -vNUM=`echo $number` '(NR>=NUM)' test1
  
 OR
  
 cat test.ksh
 awk -vNUM=5 '(NR>=NUM)' test1

Output will be as follows.
Code:
 Hostname1
Value1=abc1
Value2=def1
Value3=xyz1
Hostname2
Value1=abc2
Value2=def2
Value3=xyz2

Hope this helps.


Thanks,
R. Singh
 

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LEARN ABOUT HPUX

dteditorgotoline

DtEditorGoToLine(library call)											    DtEditorGoToLine(library call)

NAME

       DtEditorGoToLine -- move the insert cursor for a DtEditor widget to a specified line

SYNOPSIS

       #include <Dt/Editor.h>
       void DtEditorGoToLine(
       Widget widget,
       int lineNumber);

DESCRIPTION

       The  DtEditorGoToLine  function	moves  the  insert cursor for the DtEditor widget to the beginning of the line specified by the lineNumber
       argument.  The cursor can be moved to the last line by specifying DtEDITOR_LAST_LINE as the line number.  If the line is not currently  on-
       screen, the contents for the DtEditor widget are scrolled to display the new insertion position.

       The lineNumber argument is the number of the line in the file, counting from 1.	If the lineNumber argument is less than 1, the insert cur-
       sor is placed at the beginning of the first line.  If the argument is greater than the total number of lines, the cursor is placed  at  the
       last line of text.

       The  insert  cursor can be moved to a specific character position with DtEditorSetInsertionPosition(3). The DtNtopCharacter resource can be
       used to control which line is displayed at the top of the DtEditor widget.

       The widget argument specifies the DtEditor widget ID.

       The lineNumber argument specifies the line number within the DtEditor widget.

       For a complete definition of the DtEditor widget and its associated resources, see DtEditor(3).

RETURN VALUE

       The DtEditorGoToLine function returns no value.

SEE ALSO

       Dt/Editor.h - DtEditor(5), DtEditor(3), DtEditorSetInsertionPosition(3).

														    DtEditorGoToLine(library call)
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