cckdcomp: 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/cckdcomp - from package: hercules

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

On Debian possible default full paths are:

/usr/bin/cckdcomp - from package: hercules

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

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