gotst: 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/lib/debug/usr/bin/gotst - from package: scotch-dbg
/usr/bin/gotst - from package: scotch

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