tickr: 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/tickr - from package: tickr

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

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