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

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

On Debian possible default full paths are:

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

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

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