sh.shared: 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/lib/klibc/bin/sh.shared - from package: klibc-utils

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