tsinfo: 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/tsinfo - from package: tstools

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

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