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Top Forums Shell Programming and Scripting Delete lines containing and remove the blank line at the same time Post 302650685 by cokedude on Monday 4th of June 2012 05:33:24 AM
Old 06-04-2012
Delete lines containing and remove the blank line at the same time

Is there a way to delete a line containing something and the blank line at the same time?

If you do this it leaves a blank line behind.

Code:
sed '/yum/d' .bash_history

I know this works but I would think there would be a way to do it with one command

Code:
 sed '/yum/d' .bash_history | sed '/^$/d'

In vi this also leaves a blank line behind.

Code:
:g/yum/d

In vi this removes the blank line.

Code:
:g/^\s*$/d

 

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delch(3cur)															       delch(3cur)

Name
       delch, mvdelch, mvwdelch, wdelch - remove character from window

Syntax
       #include <cursesX.h>

       int delch()

       int wdelch(win)
       WINDOW *win;

       int mvdelch(y, x)
       int y, x;

       int mvwdelch(win, y, x)
       WINDOW *win;
       int y, x;

Description
       The  routine  deletes  the character under the cursor in the default window.  All characters to the right on the same line are moved to the
       left one position and the last character on the line is filled with a blank.  The cursor position does not change.

       The routine deletes the character under the cursor in the specified window.  All characters to the right on the same line are moved to  the
       left one position and the last character on the line is filled with a blank.  The cursor position does not change.

       The  routine moves the cursor to the specified position in the default window.  The character found at this location is deleted.  All char-
       acters to the right on the same line are moved to the left one position and the last character on the line is filled  with  a  blank.   The
       cursor position does not change.

       The  routine  moves  the  cursor  to the specified position in the specified window.  The character found at this location is deleted.  All
       characters to the right on the same line are moved to the left one position and the last character on the line is filled with a blank.  The
       cursor position does not change.

       The routines and are macros.

Return Values
       The and functions return OK on success and ERR on error.

																       delch(3cur)
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