ear: 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/ear - from package: ecere-dev

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

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