pma-configure: command not found

Have You tried accessing the binary with the full path?

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH

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/sbin/pma-configure - from package: phpmyadmin

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