autotrace: 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 CentOS possible default full paths are:

/usr/bin/autotrace - from package: autotrace

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