hspell-i: 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/hspell-i - from package: hspell

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

On Debian possible default full paths are:

/usr/bin/hspell-i - from package: hspell

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

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