showvte: command not found

Have You tried accessing the binary with the full path?

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/showvte - from package: evilvte

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