panoinfo: 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/panoinfo - from package: libpano13-bin

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

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