paster2.7: 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

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/paster2.7 - from package: python-pastescript

You may install the required package with command apt-get install {package}
Error in other languages:
paster2.7: bevel nie gevind nie
paster2.7: comandă negăsită
paster2.7: comando não encontrado
paster2.7: commande introuvable
paster2.7: command not found
paster2.7: käsku ei ole
paster2.7: không tìm thấy lệnh
paster2.7: komanda nerasta
paster2.7: Kommando nicht gefunden.
paster2.7: kommandot finns inte
paster2.7: komut yok
paster2.7: nie znaleziono polecenia
paster2.7: níor aimsíodh an t-ordú
paster2.7: no se encontró la orden
paster2.7: no s'ha trobat l'ordre
paster2.7: opdracht niet gevonden
paster2.7: parancs nem található
paster2.7: perintah tidak ditemukan
paster2.7: príkaz nenájdený
paster2.7: příkaz nenalezen
paster2.7: команда не найдена
paster2.7: командата не е открита
paster2.7: 命令找不到
paster2.7: コマンドが見つかりません