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Full Discussion: delete duplicated characters in each line
Top Forums Shell Programming and Scripting delete duplicated characters in each line Post 302382025 by daptal on Monday 21st of December 2009 10:15:29 PM
Old 12-21-2009
Code:
cat abc.txt |  perl -e '
while(<>){ 
         chomp;
         my %hash;
         map { print "$_/" } grep(!$hash{$_}++, split(//));
         print "\n";
}'

HTH,
PL
 

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LEARN ABOUT OPENSOLARIS

delch

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 5.11							    5 Jun 2002							   delch(3XCURSES)
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