texifyabel: 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/texifyabel - from package: texify

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