$ sudo apt-get install byzanz

#!/bin/bash# Delay before startingDELAY=10# Sound notification to let one know when recording is about to start (and ends)beep() {    paplay /usr/share/sounds/KDE-Im-Irc-Event.ogg &}# Duration and output fileif [ $# -gt 0 ]; then    D="--duration=$@"else    echo Default recording duration 10s to /tmp/recorded.gif    D="--duration=10 /tmp/recorded.gif"fiXWININFO=$(xwininfo)read X < <(awk -F: ‘/Absolute upper-left X/{print $2}‘ <<< "$XWININFO")read Y < <(awk -F: ‘/Absolute upper-left Y/{print $2}‘ <<< "$XWININFO")read W < <(awk -F: ‘/Width/{print $2}‘ <<< "$XWININFO")read H < <(awk -F: ‘/Height/{print $2}‘ <<< "$XWININFO")echo Delaying $DELAY seconds. After that, byzanz will startfor (( i=$DELAY; i>0; --i )) ; do    echo $i    sleep 1donebeepbyzanz-record --verbose --delay=0 --x=$X --y=$Y --width=$W --height=$H $Dbeep

#!/bin/bash# Delay before startingDELAY=10# Sound notification to let one know when recording is about to start (and ends)beep() {    paplay /usr/share/sounds/KDE-Im-Irc-Event.ogg &}# Duration and output fileif [ $# -gt 0 ]; then    D="--duration=$@"else    echo Default recording duration 10s to /tmp/recorded.gif    D="--duration=10 /tmp/recorded.gif"fi# xrectsel from https://github.com/lolilolicon/xrectselARGUMENTS=$(xrectsel "--x=%x --y=%y --width=%w --height=%h") || exit -1echo Delaying $DELAY seconds. After that, byzanz will startfor (( i=$DELAY; i>0; --i )) ; do    echo $i    sleep 1donebeepbyzanz-record --verbose --delay=0 ${ARGUMENTS} $Dbeep

#!/bin/bash# AUTHOR:   (c) Rob W 2012, modified by MHC (http://askubuntu.com/users/81372/mhc)# NAME:     GIFRecord 0.1# DESCRIPTION:  A script to record GIF screencasts.# LICENSE:  GNU GPL v3 (http://www.gnu.org/licenses/gpl.html)# DEPENDENCIES:   byzanz,gdialog,notify-send (install via sudo add-apt-repository ppa:fossfreedom/byzanz; 
#                 sudo apt-get update && sudo apt-get install byzanz gdialog notify-osd)# Time and dateTIME=$(date +"%Y-%m-%d_%H%M%S")# Delay before startingDELAY=10# Standard screencast folderFOLDER="$HOME/Pictures"# Default recording durationDEFDUR=10# Sound notification to let one know when recording is about to start (and ends)beep() {    paplay /usr/share/sounds/freedesktop/stereo/message-new-instant.oga &}# Custom recording duration as set by userUSERDUR=$(gdialog --title "Duration?" --inputbox "Please enter the screencast duration in seconds" 200 100 2>&1)# Duration and output fileif [ $USERDUR -gt 0 ]; then    D=$USERDURelse    D=$DEFDURfi# Window geometryXWININFO=$(xwininfo)read X < <(awk -F: ‘/Absolute upper-left X/{print $2}‘ <<< "$XWININFO")read Y < <(awk -F: ‘/Absolute upper-left Y/{print $2}‘ <<< "$XWININFO")read W < <(awk -F: ‘/Width/{print $2}‘ <<< "$XWININFO")read H < <(awk -F: ‘/Height/{print $2}‘ <<< "$XWININFO")# Notify the user of recording time and delaynotify-send "GIFRecorder" "Recording duration set to $D seconds. Recording will start in $DELAY seconds."#Actual recordingsleep $DELAYbeepbyzanz-record -c --verbose --delay=0 --duration=$D --x=$X --y=$Y --width=$W --height=$H "$FOLDER/GIFrecord_$TIME.gif"beep# Notify the user of end of recording.notify-send "GIFRecorder" "Screencast saved to $FOLDER/GIFrecord_$TIME.gif"

./bootstrap  # required if ./configure is not present./configure --prefix=/usrmake$ sudo make instal

./bootstrap

$ sudo apt-get install autoconf

$ sudo chmod 755 ./byzanz-record-region.sh $ sudo chmod 755 ./byzanz-record-window.sh $ sudo chmod 755 ./byzanz-record-window-gui.sh

./byzanz-record-region.sh