easydialog.sh: 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/easydialog.sh - from package: easybashgui

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

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