02-27-2008
this is to reverse a file.
NR (Record number) is a number associated with each record.
$0 stands for entire line (one line in the input file)
so a[NR]=$0 means it will store each line in array 'a'.
Hope you got it (am not a good teacher
)
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LEARN ABOUT DEBIAN
byzanz-record
BYZANZ-RECORD(1) General Commands Manual BYZANZ-RECORD(1)
NAME
byzanz-record - record your desktop session to an animated GIF
SYNOPSIS
byzanz-record [options] FILENAME
DESCRIPTION
Byzanz records your desktop session to an animated GIF. You can record your entire screen, a single window, or an arbitrary region.
byzanz-record allows you to make recordings from the command line. Graphical users may want to use the panel applet instead.
OPTIONS
Application Options:
-d, --duration=SECS
Duration of animation (default: 10 seconds)
--delay=SECS
Delay before start (default: 1 second)
-c, --cursor
Record mouse cursor
-a, --audio
Record audio from the default input device. This only works if the output format supports it and will otherwise cause an error.
-x, --x=PIXEL
X coordinate of rectangle to record
-y, --y=PIXEL
Y coordinate of rectangle to record
-w, --width=PIXEL
Width of recording rectangle
-h, --height=PIXEL
Height of recording rectangle
-v, --verbose
Be verbose
--display=DISPLAY
X display to use
Help Options:
-?, --help
Show help options
--help-gtk
Show GTK+ Options
--help-all
Show all help options
OUTPUT FILE
After byzanz-record is finished, the recording is written to FILENAME. The format is determined by the filename extension. The following
formats are supported:
gif Record to an animated GIF image. Use this if you want to record a mostly static screen with a limited amount of colors, such as
using a file manager or an office application. This is the default and will be used if an unrecognized extension is used.
ogg, ogv
Record to an Ogg Theora video. This format supports audio. Use this if you want to record dynamic contents, such as video playback.
flv Record to a Flash Screen video. This recording method is lossless. Use it if you want to postprocess the file in other applications.
byzanz Record to Byzanz' internal debugging format. This is useful for benchmarking Byzanz or if you want to convert the recording to mul-
tiple formats later. You can use byzanz-playback(1) to convert the file.
SEE ALSO
byzanz-playback(1)
AUTHOR
Byzanz was written by Benjamin Otte <otte@gnome.org>.
This manual page was last updated for version 0.2.1.
BYZANZ-RECORD(1)