shlibsign: 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 Debian possible default full paths are:

/usr/bin/shlibsign - from package: libnss3-tools

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

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