showq: 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/showq - from package: showq

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

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