tina: 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/tina - from package: tina

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