showorf: 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
/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/showorf - from package: emboss

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