file-roller: 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/file-roller - from package: file-roller

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

On Debian possible default full paths are:

/usr/bin/file-roller - from package: file-roller

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

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