getmapdl: command not found

Have You tried accessing the binary with the full path?

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/getmapdl - from package: texlive-pictures

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