fishpolld: 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/sbin/fishpolld - from package: fishpolld

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

On Debian possible default full paths are:

/usr/sbin/fishpolld - from package: fishpolld

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

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