smemcap: 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/smemcap - from package: smemcap

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

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