blam: 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
/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 Debian possible default full paths are:

/usr/bin/blam - from package: blam

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