kid3-qt: 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/kid3-qt - from package: kid3-qt

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

Error in other languages:
kid3-qt: bevel nie gevind nie
kid3-qt: comandă negăsită
kid3-qt: comando não encontrado
kid3-qt: commande introuvable
kid3-qt: command not found
kid3-qt: käsku ei ole
kid3-qt: không tìm thấy lệnh
kid3-qt: komanda nerasta
kid3-qt: Kommando nicht gefunden.
kid3-qt: kommandot finns inte
kid3-qt: komut yok
kid3-qt: nie znaleziono polecenia
kid3-qt: níor aimsíodh an t-ordú
kid3-qt: no se encontró la orden
kid3-qt: no s'ha trobat l'ordre
kid3-qt: opdracht niet gevonden
kid3-qt: parancs nem található
kid3-qt: perintah tidak ditemukan
kid3-qt: príkaz nenájdený
kid3-qt: příkaz nenalezen
kid3-qt: команда не найдена
kid3-qt: командата не е открита
kid3-qt: 命令找不到
kid3-qt: コマンドが見つかりません