initex: 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/initex - from package: texlive-binaries

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