log2long: 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/log2long - from package: can-utils

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

Error in other languages:
log2long: bevel nie gevind nie
log2long: comandă negăsită
log2long: comando não encontrado
log2long: commande introuvable
log2long: command not found
log2long: käsku ei ole
log2long: không tìm thấy lệnh
log2long: komanda nerasta
log2long: Kommando nicht gefunden.
log2long: kommandot finns inte
log2long: komut yok
log2long: nie znaleziono polecenia
log2long: níor aimsíodh an t-ordú
log2long: no se encontró la orden
log2long: no s'ha trobat l'ordre
log2long: opdracht niet gevonden
log2long: parancs nem található
log2long: perintah tidak ditemukan
log2long: príkaz nenájdený
log2long: příkaz nenalezen
log2long: команда не найдена
log2long: командата не е открита
log2long: 命令找不到
log2long: コマンドが見つかりません