alfsplit: command not found

Have You tried accessing the binary with the full path?

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/lib/staden/bin/alfsplit - from package: staden

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