tlocal: 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/tlocal - from package: ncl

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

On Debian possible default full paths are:

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

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

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