jocamllex: 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/jocamllex - from package: jocaml

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

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