iodbc-config: 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/iodbc-config - from package: libiodbc-devel

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

On Debian possible default full paths are:

/usr/bin/iodbc-config - from package: libiodbc2-dev

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

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