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Full Discussion: Optimizing script to reduce execution time
Top Forums Shell Programming and Scripting Optimizing script to reduce execution time Post 302994642 by RudiC on Sunday 26th of March 2017 08:52:47 AM
Old 03-26-2017
This gives an identical output - for any purpose whatsoever - in one awk statement:
Code:
awk -vFN="$FILENAME" '
BEGIN   {LFN = length(FN) + 1
         for (i=0; i<LFN-1; i++){EMPTY = sprintf ("u1u1.%*s", i*LFN, "")
                                 printf "%s\n%s%s%s\n%s\n", EMPTY, EMPTY, substr(FN, i+1, 1), EMPTY, EMPTY
                                }
        }
'

These 2 Users Gave Thanks to RudiC For This Post:
jim mcnamara SkySmart
 

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LEARN ABOUT CENTOS

gnome-screenshot

GNOME-SCREENSHOT(1)													       GNOME-SCREENSHOT(1)

NAME

       gnome-screenshot - capture the screen, a window, or an user-defined area and save the snapshot image to a file.

SYNOPSIS

       gnome-screenshot  [  -c	]   [ -w ]  [ -a ]  [ -b ]  [ -B ]  [ -p ]  [ -d SECONDS  ]  [ -e EFFECT  ]  [ -i ]  [ -f FILENAME  ]  [ --display
       DISPLAY	]

DESCRIPTION

       gnome-screenshot is a GNOME utility for taking screenshots of the entire screen, a window or an	user-defined  area  of	the  screen,  with
       optional beautifying border effects.

OPTIONS

       -c, --clipboard
	      Send the grab directly to the clipboard.

       -w, --window
	      Grab the current active window instead of the entire screen.

       -a, --area
	      Grab an area of the screen instead of the entire screen.

       -b, --include-border
	      Include the window border within the screenshot.

       -B, --remove-border
	      Remove the window border from the screenshot.

       -p, --include-pointer
	      Include the pointer with the screenshot.

       -d, --delay=SECONDS,
	      Take the screenshot after the specified delay [in seconds].

       -e, --border-effect=EFFECT,
	      Add  an effect to the outside of the screenshot border.  EFFECT can be ``shadow'' (adding drop shadow), ``border'' (adding rectangu-
	      lar space around the screenshot) or ``none'' (no effect).  Default is ``none''.

       -i, --interactive
	      Interactively set options in a dialog.

       -f, --file=FILENAME
	      Save screenshot directly to this file.

       --display=DISPLAY
	      X display to use.

       -?, -h, --help
	      Show a summary of the available options.

       In addition, the usual GTK+ command line options apply.	See the output of --help for details.

AUTHOR

       This manual page was written by Christian Marillat <marillat@debian.org> for the Debian GNU/Linux system (but may be used by others).

       Updated by Theppitak Karoonboonyanan <thep@linux.thai.net>, Tom Feiner <feiner.tom@gmail.com>, Cosimo Cecchi <cosimoc@gnome.org>  and  oth-
       ers.

								   May 14, 2013 					       GNOME-SCREENSHOT(1)
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