cfshow: 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 Debian possible default full paths are:

/usr/lib/debug/usr/sbin/cfshow - from package: cfengine2-dbg
/usr/sbin/cfshow - from package: cfengine2

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

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