grokevt-dumpmsgs: 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/grokevt-dumpmsgs - from package: grokevt

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

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