ncrcat: 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/ncrcat - from package: nco

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

On Debian possible default full paths are:

/usr/bin/ncrcat - from package: nco

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

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