findhyph: 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/findhyph - from package: texlive-extra-utils

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

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