splitpatch: 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/bin/splitpatch - from package: splitpatch

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