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Top Forums Shell Programming and Scripting grep variable with tricky content Post 302580286 by itkamaraj on Thursday 8th of December 2011 05:17:03 AM
Old 12-08-2011
where is your echo statement ?

can you post the $string and $text values ?

---------- Post updated at 03:47 PM ---------- Previous update was at 03:45 PM ----------

Code:
 
$ echo "ab-cd-ef" | grep -v -- $a 
ab-cd-ef

$ echo $a
-ab

---------- Post updated at 03:47 PM ---------- Previous update was at 03:47 PM ----------

Code:
 
$ echo "ab-cd-ef" | grep -v -- $a 
ab-cd-ef

$ echo $a
-ab

This User Gave Thanks to itkamaraj For This Post:
 

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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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