sam_juncs: 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 Debian possible default full paths are:

/usr/bin/sam_juncs - from package: tophat

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

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