lasinfo: 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/lasinfo - from package: liblas-bin

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

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