ecasignalview: 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/ecasignalview - from package: ecatools

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

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