kickdict: 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/libexec/crack/bin/kickdict - from package: crack

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

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