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

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

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