qshape: 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/sbin/qshape - from package: postfix-perl-scripts

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

On Debian possible default full paths are:

/usr/sbin/qshape - from package: postfix

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

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