ncargpath: 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/ncargpath - from package: ncl

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

On Debian possible default full paths are:

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

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

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