smistrip: 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 CentOS possible default full paths are:

/usr/bin/smistrip - from package: libsmi

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

On Debian possible default full paths are:

/usr/bin/smistrip - from package: smistrip

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

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