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Full Discussion: Replace blanks with | (pipe)
Top Forums Shell Programming and Scripting Replace blanks with | (pipe) Post 302459748 by bd_joy on Tuesday 5th of October 2010 09:54:04 AM
Old 10-05-2010
Replace blanks with | (pipe)

Hello,

I'm trying to replace the first x number of spaces in a line with a |. Right now I'm using a very inefficient syntax to accomplish the task and was looking to simplify it.

I have several cases were the pipes need to replace just the first space on the line, which I did a simple replace. I am doing this while reading each line of a file that I'm cat'ing.

Code:
v_sec=`echo $line | sed 's/ /|/'`

The ugly code comes in when I need to replace the first 11 spaces with pipes and ended up doing this:

Code:
		v_bar1=`echo $line | sed 's/ /|/'`
			v_bar2=`echo $v_bar1 | sed 's/ /|/'`
			v_bar3=`echo $v_bar2 | sed 's/ /|/'`
			v_bar4=`echo $v_bar3 | sed 's/ /|/'`
			v_bar5=`echo $v_bar4 | sed 's/ /|/'`
			v_bar6=`echo $v_bar5 | sed 's/ /|/'`
			v_bar7=`echo $v_bar6 | sed 's/ /|/'`
			v_bar8=`echo $v_bar7 | sed 's/ /|/'`
			v_bar9=`echo $v_bar8 | sed 's/ /|/'`
			v_bar10=`echo $v_bar9 | sed 's/ /|/'`
			v_bar_final=`echo $v_bar10 | sed 's/ /|/'`

Any suggestions to simplify would be appreciated. Smilie
 

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

NAME
echo, noecho - enable/disable terminal echo 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 echo(void); int noecho(void); DESCRIPTION
The echo() function enables Echo mode for the current screen. The noecho() function disables Echo mode for the current screen. Initially, curses software echo mode is enabled and hardware echo mode of the tty driver is disabled. The echo() and noecho() functions control soft- ware echo only. Hardware echo must remain disabled for the duration of the application, else the behavior is undefined. RETURN VALUES
Upon successful completion, these functions return OK. Otherwise, they return ERR. ERRORS
No errors are defined. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Standard | +-----------------------------+-----------------------------+ |MT-Level |Unsafe | +-----------------------------+-----------------------------+ SEE ALSO
getch(3XCURSES), getstr(3XCURSES), initscr(3XCURSES), libcurses(3XCURSES), scanw(3XCURSES), attributes(5), standards(5) SunOS 5.11 5 Jun 2002 echo(3XCURSES)
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