qmake-ge: 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/qmake-ge - from package: gridengine

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

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