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Full Discussion: Use sed to delete a character
Top Forums Shell Programming and Scripting Use sed to delete a character Post 72194 by vgersh99 on Thursday 19th of May 2005 03:21:36 PM
Old 05-19-2005
Quote:
Originally Posted by bthomas
I built a 12 million record file and made a mistake, one field is 1 character too long.

The record is 40 bytes and ends always in 999. I am trying to delete the 37 character in each record. Is this possible without doing a cut and paste.
To delete the 37-th character on every line [on Solaris for example]:
Code:
/bin/echo '%s/^\(.\{36\}\).\(.*\)$/\1\2/g\nwq!' | /usr/xpg4/bin/ex -s btomas.txt

 

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LEARN ABOUT SUNOS

mvwdelch

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

NAME

       delch, mvdelch, mvwdelch, wdelch - remove a character

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 delch(void);

       int mvdelch(int y, int x);

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

       int wdelch(WINDOW *win);

DESCRIPTION

       The  delch()  and wdelch() functions delete the character at  the current cursor position from stdscr and win, respectively.  All remaining
       characters after cursor through to the end of the line are shifted one character towards the start of the line. The last character  on  the
       line becomes a space; characters on other lines are  not affected.

       The  mvdelch()  and mvwdelch() functions delete the character at  the position specified by the x and y parameters; the former  deletes the
       character from stdscr; the latter from win.

PARAMETERS

       y	Is the y (row) coordinate of the position of the character  to be removed.

       x	Is the x (column) coordinate of the position of the character  to be removed.

       win	Is a pointer to the window containing the character to be removed.

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

       bkgdset(3XCURSES), insch(3XCURSES), libcurses(3XCURSES), attributes(5), standards(5)

SunOS 5.10							    5 Jun 2002							   delch(3XCURSES)
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