ipig: command not found

Have You tried accessing the binary with the full path?

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/ipig - from package: ipig

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