packagesearch: 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/packagesearch - from package: packagesearch

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

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