atslib: 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/ats-anairiats-0.2.11/bin/atslib - from package: ats-lang-anairiats

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