0launch: 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/0launch - from package: zeroinstall-injector

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

On Debian possible default full paths are:

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

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

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