arcget: 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/arcget - from package: nordugrid-arc-client

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

On Debian possible default full paths are:

/usr/bin/arcget - from package: nordugrid-arc-client

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

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