dictfmt: 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/dictfmt - from package: dictfmt

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

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