ccencrypt: 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/ccencrypt - from package: ccrypt

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