grmic: 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 CentOS possible default full paths are:

/usr/bin/grmic - from package: libgcj

You may install the required package with command yum install {package}

On Debian possible default full paths are:

/usr/bin/grmic - from package: gcj-jdk

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

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