compile_et: 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/compile_et - from package: libcom_err-devel

You may install the required package with command yum install {package}

On Debian possible default full paths are:

/usr/bin/compile_et - from package: comerr-dev

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