uconv: 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/uconv - from package: icu

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

On Debian possible default full paths are:

/usr/bin/uconv - from package: icu-devtools

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

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