jot: 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/jot - from package: athena-jot

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