pesinfo: 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/pesinfo - from package: opencaster

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

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