iconvconfig: 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/sbin/iconvconfig - from package: glibc

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

On Debian possible default full paths are:

/usr/sbin/iconvconfig - from package: libc-bin

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

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