parcellite: 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/parcellite - from package: parcellite

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

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