japiotext: 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/japiotext - from package: japitools

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