tsung-rrd.pl: 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/lib64/tsung/bin/tsung-rrd.pl - from package: tsung

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

On Debian possible default full paths are:

/usr/lib/tsung/bin/tsung-rrd.pl - from package: tsung

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

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