mstmread: 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/mstmread - from package: mstflint

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

On Debian possible default full paths are:

/usr/bin/mstmread - from package: mstflint

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

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