reduce-font: 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/reduce-font - from package: libbogl-dev

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

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