superformat: 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/superformat - from package: fdutils

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