saidar: 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/saidar - from package: statgrab-tools

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

On Debian possible default full paths are:

/usr/bin/saidar - from package: saidar

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

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