dgmap: 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/dgmap - from package: ptscotch

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

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