likey: 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/likey - from package: listaller

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