pcapip: 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/pcapip - from package: pcaputils

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

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