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Full Discussion: sed (variable)
Top Forums Shell Programming and Scripting sed (variable) Post 302192540 by wedwed on Wednesday 7th of May 2008 06:56:59 AM
Old 05-07-2008
how to delete line from file ( using variables)

SmilieSmilie

hi i have a big file i need every time to cut number of lines related together and ta delete also first two lines in the file.

for example :
while ( $x <= $n)
set var1 = ` cat file | sed '1,2d' | awk '{print $4}' | sed '$x,$d' `
@ x = $x + $t
end

it gives me an error with sed command which contains the variable ??????

can anyone help me!!!!!!!!!!!!!!!!!!!!
 

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insdelln(3XCURSES)					  X/Open Curses Library Functions					insdelln(3XCURSES)

NAME
insdelln, winsdelln - insert/delete lines to/from the window SYNOPSIS
cc [ flag... ] file... -I /usr/xpg4/include -L /usr/xpg4/lib -R /usr/xpg4/lib -lcurses [ library... ] c89 [ flag... ] file... -lcurses [ library... ] #include <curses.h> int insdelln(int n); int winsdelln(WINDOW *win, int n); PARAMETERS
n Is the number of lines to insert or delete (positive n inserts; negative n deletes). win Is a pointer to the window in which to insert or delete a line. DESCRIPTION
The insdelln() and winsdelln() functions insert or delete blank lines in stdscr or win, respectively. When n is positive, n lines are added before the current line and the bottom n lines are lost; when n is negative, n lines are deleted starting with the current line, the remaining lines are moved up, and the bottom n lines are cleared. The position of the cursor does not change. RETURN VALUES
On success, these functions return OK. Otherwise, they return ERR. ERRORS
None. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Standard | +-----------------------------+-----------------------------+ |MT-Level |Unsafe | +-----------------------------+-----------------------------+ SEE ALSO
deleteln(3XCURSES), insertln(3XCURSES), libcurses(3XCURSES), attributes(5), standards(5) SunOS 5.11 5 Jun 2002 insdelln(3XCURSES)
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