qclip: 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/lib/staden/bin/qclip - from package: staden

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

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