llvm-nm: 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 CentOS possible default full paths are:

/usr/bin/llvm-nm - from package: llvm

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

On Debian possible default full paths are:

/usr/bin/llvm-nm - from package: llvm
/usr/lib/llvm-3.4/bin/llvm-nm - from package: llvm-3.4
/usr/lib/llvm-3.5/bin/llvm-nm - from package: llvm-3.5

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