spacechart: 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/spacechart - from package: spacechart

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

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