texifylisp: 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/texifylisp - from package: texify

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

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