tdspool: 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 CentOS possible default full paths are:

/usr/bin/tdspool - from package: freetds

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

On Debian possible default full paths are:

/usr/bin/tdspool - from package: freetds-bin

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