kjots: 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 CentOS possible default full paths are:

/usr/bin/kjots - from package: kdepim

You may install the required package with command yum install {package}

On Debian possible default full paths are:

/usr/bin/kjots - from package: kjots

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

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