ncea: 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/ncea - from package: nco

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

On Debian possible default full paths are:

/usr/bin/ncea - from package: nco

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

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