dictzcat: 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

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/dictzcat - from package: dictzip

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