scissor-many: 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/lib64/piglit/bin/scissor-many - from package: piglit

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

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