zoomsh: 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/zoomsh - from package: yaz

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

On Debian possible default full paths are:

/usr/bin/zoomsh - from package: yaz

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

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