ccat: 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/bin/ccat - from package: ccrypt

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

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