katedec: 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/katedec - from package: libkate-utils

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

On Debian possible default full paths are:

/usr/bin/katedec - from package: libkate-tools

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

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