enlightenment_imc: 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
/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/enlightenment_imc - from package: e17

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