select-default-iwrap: 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 Debian possible default full paths are:

/usr/bin/select-default-iwrap - from package: dictionaries-common

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

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