grokevt-addlog: 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

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/grokevt-addlog - from package: grokevt

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