wbar-config: command not found

Have You tried accessing the binary with the full path?

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/wbar-config - from package: wbar-config

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