0desktop: 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 CentOS possible default full paths are:

/usr/bin/0desktop - from package: zeroinstall-injector

You may install the required package with command yum install {package}

On Debian possible default full paths are:

/usr/bin/0desktop - from package: 0install-core

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

Error in other languages:
0desktop: bevel nie gevind nie
0desktop: comandă negăsită
0desktop: comando não encontrado
0desktop: commande introuvable
0desktop: command not found
0desktop: käsku ei ole
0desktop: không tìm thấy lệnh
0desktop: komanda nerasta
0desktop: Kommando nicht gefunden.
0desktop: kommandot finns inte
0desktop: komut yok
0desktop: nie znaleziono polecenia
0desktop: níor aimsíodh an t-ordú
0desktop: no se encontró la orden
0desktop: no s'ha trobat l'ordre
0desktop: opdracht niet gevonden
0desktop: parancs nem található
0desktop: perintah tidak ditemukan
0desktop: príkaz nenájdený
0desktop: příkaz nenalezen
0desktop: команда не найдена
0desktop: командата не е открита
0desktop: 命令找不到
0desktop: コマンドが見つかりません