contig_draw: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On Debian possible default full paths are:

/usr/bin/contig_draw - from package: libbio-graphics-perl

You may install the required package with command apt-get install {package}

Error in other languages:
contig_draw: bevel nie gevind nie
contig_draw: comandă negăsită
contig_draw: comando não encontrado
contig_draw: commande introuvable
contig_draw: command not found
contig_draw: käsku ei ole
contig_draw: không tìm thấy lệnh
contig_draw: komanda nerasta
contig_draw: Kommando nicht gefunden.
contig_draw: kommandot finns inte
contig_draw: komut yok
contig_draw: nie znaleziono polecenia
contig_draw: níor aimsíodh an t-ordú
contig_draw: no se encontró la orden
contig_draw: no s'ha trobat l'ordre
contig_draw: opdracht niet gevonden
contig_draw: parancs nem található
contig_draw: perintah tidak ditemukan
contig_draw: príkaz nenájdený
contig_draw: příkaz nenalezen
contig_draw: команда не найдена
contig_draw: командата не е открита
contig_draw: 命令找不到
contig_draw: コマンドが見つかりません