connectomeviewer: 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/connectomeviewer - from package: connectomeviewer

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

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