Ecode single pictures into movie

telesismedia@ubuntu:~$ lss
No command 'lss' found, did you mean:
 Command 'lsw' from package 'dwm-tools' (universe)
 Command 'less' from package 'less' (main)
 Command 'lssu' from package 'nilfs-tools' (universe)
 Command 'ls' from package 'coreutils' (main)
 Command 'lrs' from package 'lrslib' (universe)
 Command 'lsh' from package 'lsh-client' (universe)
 Command 'ass' from package 'irpas' (multiverse)
 Command 'les' from package 'atm-tools' (universe)
 Command 'lvs' from package 'lvm2' (main)
 Command 'gss' from package 'libgss-dev' (universe)
 Command 'ss' from package 'iproute' (main)
lss: command not found
telesismedia@ubuntu:~$ ls
Arizona_Address  examples.desktop  libvpx           pulseverbose.log  x264
Desktop          ffmpeg            Music            Templates
Documents        gnubg_ts0.bd      Pictures         tmp
Downloads        kdenlive          ppa_key_.VLCpng  Ubuntu One
dwhelper         lame-3.98.4       Public           Videos
telesismedia@ubuntu:~$ cd tmp
telesismedia@ubuntu:~/tmp$ clear
telesismedia@ubuntu:~/tmp$  ffmpeg -f image2 -i img%d.jpg /tmp/a.mpg
FFmpeg version SVN-r26060, Copyright (c) 2000-2010 the FFmpeg developers
  built on Apr 30 2011 16:46:37 with gcc 4.4.3
  configuration: --enable-nonfree --enable-libfaac --enable-libmp3lame --enable-libx264 --enable-libvpx --enable-libvorbis --enable-libxvid --enable-x11grab --enable-zlib --enable-pthreads --enable-gpl --enable-version3 --enable-libtheora --enable-postproc
  libavutil     50.35. 0 / 50.35. 0
  libavcore      0.16. 0 /  0.16. 0
  libavcodec    52.100. 0 / 52.100. 0
  libavformat   52.88. 0 / 52.88. 0
  libavdevice   52. 2. 2 / 52. 2. 2
  libavfilter    1.69. 0 /  1.69. 0
  libswscale     0.12. 0 /  0.12. 0
  libpostproc   51. 2. 0 / 51. 2. 0t I want 
img%d.jpg: No such file or directory
media@ubuntu:~/tmp$