tinyca2: 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 CentOS possible default full paths are:

/usr/bin/tinyca2 - from package: tinyca2

You may install the required package with command yum install {package}

On Debian possible default full paths are:

/usr/bin/tinyca2 - from package: tinyca

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

Error in other languages:
tinyca2: bevel nie gevind nie
tinyca2: comandă negăsită
tinyca2: comando não encontrado
tinyca2: commande introuvable
tinyca2: command not found
tinyca2: käsku ei ole
tinyca2: không tìm thấy lệnh
tinyca2: komanda nerasta
tinyca2: Kommando nicht gefunden.
tinyca2: kommandot finns inte
tinyca2: komut yok
tinyca2: nie znaleziono polecenia
tinyca2: níor aimsíodh an t-ordú
tinyca2: no se encontró la orden
tinyca2: no s'ha trobat l'ordre
tinyca2: opdracht niet gevonden
tinyca2: parancs nem található
tinyca2: perintah tidak ditemukan
tinyca2: príkaz nenájdený
tinyca2: příkaz nenalezen
tinyca2: команда не найдена
tinyca2: командата не е открита
tinyca2: 命令找不到
tinyca2: コマンドが見つかりません