findg: 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
/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/findg - from package: ncl

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

On Debian possible default full paths are:

/usr/bin/findg - from package: ncl-ncarg

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