welcome2l: 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/welcome2l - from package: welcome2l

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

Error in other languages:
welcome2l: bevel nie gevind nie
welcome2l: comandă negăsită
welcome2l: comando não encontrado
welcome2l: commande introuvable
welcome2l: command not found
welcome2l: käsku ei ole
welcome2l: không tìm thấy lệnh
welcome2l: komanda nerasta
welcome2l: Kommando nicht gefunden.
welcome2l: kommandot finns inte
welcome2l: komut yok
welcome2l: nie znaleziono polecenia
welcome2l: níor aimsíodh an t-ordú
welcome2l: no se encontró la orden
welcome2l: no s'ha trobat l'ordre
welcome2l: opdracht niet gevonden
welcome2l: parancs nem található
welcome2l: perintah tidak ditemukan
welcome2l: príkaz nenájdený
welcome2l: příkaz nenalezen
welcome2l: команда не найдена
welcome2l: командата не е открита
welcome2l: 命令找不到
welcome2l: コマンドが見つかりません