cmemit: 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/cmemit - from package: infernal

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