gtkmorph: 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/gtkmorph - from package: gtkmorph

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

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